delivered the opinion of the court.
The question presented for our determination by the record in this case is, whether or not the payee or assignee of a note, made before the 25th of February, 1862, is obliged by law to accept in payment United States notes, equal in nominal amount to the sum due according to its terms, when tendered by the maker or other party bound to pay it? And this requires, in the. first place, a construction of that clause of the first section of the act of Congress passed on that day, which declares the United States notes, the.issue of which was authorized by the statute, to be a legal tender in payment of debts. The clause has already received much consideration here, and this court has held that, upon a sound con*607struction, neither taxes imposed by State legislation,* nor demands upon contracts which stipulate in terms for the payment or delivery of coin or bullion,† are included by legislative intention under the description of debts public and private. We are now to determine whether this description embraces debts contracted before as well as after.the date of the act.
It is an established rule for the construction of statutes, that the terms employed by the legislature are not to receive an interpretation which conflicts with acknowledged principles of justice and equity, if another sense, consonant with those principles, can .be given to them. But this rule cannot prevail where the intent is clear. Except-in the scarcely supposable case where a statute sets.at nought the plainest precepts of morality and social obligation, courts must give effect to the clearly ascertained .legislative intent, if not repugnant to the fundamental law ordained in the Constitution.
Applying the rule just stated to the act under consideration, there appears to be strong reason for construing the word debts as having reference only to debts contracted subsequent to the enactment of the law. For no one will question that the United States notes, which the act makes* a legal tender in payment, are essentially-unlike in nature, and, being irredeemable in coin, are necessarily unlike in value, to the lawful money intended by parties to contracts for the payment of money made before its passage. The lawful money then in use and made a iegal tender in payment, consisted of gold and silver coin. The currency in use under the act, and declared by its terms to be lawful money and a legal tender, consists of notes or promises to pay impressed upon paper, prepared in convenient form for circulation, and protected against counterfeiting by suitable devices and penalties. The former possess intrinsic value, determined by the weight and fiueness of the metal; the latter have no intrinsic value, but' a purchasing value, determined by the *608quantity in circulation, by general consent to its currency in payments, and by opinion as to the probability of redemption in coin. Both derive, in different degrees, a certain additional value from their adaptation to circulation by the form and impress given to them under National authority, and from the acts making them respectively a legal tender.
Contracts for the payment of money, made before the act of 1862, had reference to coined money, and could not be discharged, unless by consent, otherwise than by tender of the sum due in coin. Every such contract, therefore, was, in legal import, a contract for the payment of coin.
There is a well-known law of currency, that notes or promises to pay, unless made conveniently and promptly convertible into coin at the will of the holder, can never, except under unusual and abnormal conditions, be at par in circulation with coin. It is an equally well-known law, that depreciation of notes must increase with the increase of the quantity put iu circulation and the diminution of confidence in the ability or disposition to redeem. Their appreciation follows the reversal of these conditions. No act making them a legal tender can change materially the operation /of these laws. Their force has been strikingly exemplified in the history of the United States notes. Beginning with a very slight depreciation when first- issued, in March, 1862, they sank in July, 1864, to'the rate of two dollars and eighty-five cents for a dollar in gold, and then rose until recently a dollar and twenty cents in paper became equal to a gold dollar.
Admitting, then, that prior contracts are within the intention of the act, and assuming that the act is warranted by the Constitution, it follows that the holder of a promissory note, made before the act, for a thousand dollars, payable, as we have just seen, according to the law and according to the intent of the parties, in coin, was requh’ed, when depreciation reached its lowest point, to accept in payment a thousand note dollars, although with the thousand coin dollars, due under the contract, he could have purchased on that day two thousand eight hundred and fifty such dollars. *609Every payment, siiice the passage of the act, of a note of earlier date, has presented similar, though- less striking-features. • •
Now, it -certainly néeds no argument to prove that an act, compelling acceptance in satisfaction of any other'than stipulated payment, alters arbitrarily the terms of the contract and impairs its obligation, and that the extent of impairment is in the proportion of the inequality of the payment accepted under the constraint of the law to the payment- due under the contract. Nor does it need ai’gument to prove that the practical operation of such an act is contrary to justice and equity. It follows that' no construction which attributes such practical operation to an act of Congress is to be favored, or indeed to be admitted, if any other can be reconciled with the manifest intent of the legislature.
"What, then,-is that manifest intent? Are we at liberty, upon a fair and reasonable construction of the act, to say that Congress meant that the word “debts” used in the act should not include debts contracted prior to its passage ?
In the case of Bronson v. Rodes, we thought ourselves warranted in' holding that this Word,, as used 'in the statute, does not include obligations created by express contracts for the payment of gold and silver, whether coined or in bullion. This conclusion rested, however, mainly on the terms of the act, which not only allow, but require payments in coin by or to the government, and may be fairly considered, independently of considerations belonging to the law of contracts for the delivery of specified articles, as sanctioning special private contracts for like payments; without which, indeed, the provisions relating to government payments could hardly have practical effect. This Consideration, however, does not apply to the matter now before us. There is nothing in the terms of the act.which looks to any difference in its operation on different descriptions of debts payable generally in money — that.is to say, in dollars and parts of a dollar. These terms, on the contrary, in their obvious; import, include equally all debts not specially expressed to be payable in gold or silver, whether arising under past *610contracts and already due, or arising under such contracts and to-become due at a future day, or arising and becoming due under subsequent contracts. • A strict and literal com struction indeed would, as suggested by Mr. Justice Story,* in respect to the same word used in the Constitution, limit the word “debts” to debts existing; and if this construction, cannot be accepted because the limitation sanctioned by it cannot be reconciled with the obvious scope aud purpose of the act, it is certainly conclusive against any interpretation which will exclude existing debts from, its operation. The same conclusion results from the exception of interest on loans' and duties on imports from the' effect of the legal tender clause. This exception affords an irresistible implication that no description of debts, whenever contracted, can. be' withdrawn from the effect of the act if not included within the terms or the reasonable intent of the exception. And it is worthy of observation in this connection, that in all the debates to which the act gave occasion in Congress, no suggestion was ever made that the legal tender clause did not apply as fully to contracts made before as to contracts made after its passage.
These considerations seem to, us conclusive. We do not think ourselves at liberty, therefore, to say that Congress' did not intend to make the notes authorized by it a legal tender in payment of debts contracted before the passage pf the act.
We are thus brought to the question, whether Congress has power to make notes issued under its authority a legal, tender in payment of debts, which, when' contracted, were payable by law in gold and silver coin.
The delicacy and importance of this question has not been overstated in the argument. This court always approaches the consideration of questions of this nature reluctantly; and its constant, rule of decision-, has beeu, and is, .that acts of Congress must be regarded as constitutional, unless clearly shown-to be otherwise.
*611But the Constitution is the fundamental law of the United States. By it the people have created a government, defined its powers, prescribed their limits, distributed them among the different departments, and directed, in general, the manner of their exercise. No department of the government has any other powers than those thus delegated to it by the people. All the legislative power granted by the Constitution belongs to Congress; but it has no legislative power which is not thus granted. And the same observation is equally true in its application to the executive aud judicial powers granted respectively to the President and the courts. All these powers differ in kind, but not in source or in limitation. They all arise from the Constitution, and are limited by its terms.
It is the function of the judiciary to interpret aud apply the law to cases between parties as they arise for judgment. It can only declare what the law is, and enforce, by proper process, the law thus declared. But, in ascertaining the respective rights of parties, it frequently becomes necessary to' consult the Constitution. For there can be no law inconsistent with the fundamental law. No enactment not in pursuance of the authority conferred by it can create obligations or confer rights. For such is the express declaration of the Constitution itself in these words:
“ The Constitution, and the laws of the United States which shall be made in pursuance thereof., and all treaties made,.or which shall be made under the authority of the United States, shall be the supreme law of the land; and the judges of every State shall be bound thereby, anything in the constitution or laws of any State to the' contrary notwithstanding.”
Not every act of Congress, then, is to be regarded as the supreme law of the land; nor is it by every act of Congress •that the judges are bound. This character and this force belong only to such acts-as are “ made in pursuance of the Constitution.”
When, therefore, a case arises for judicial determination, and the decision depends on the alleged inconsistency of a *612legislative provision with the fundamental law, it is the plain duty of the court to compare the act with the Constitution, and if the former cannot, upon a fair construction, be reconciled with the latter, to give effect to the Constitution rather than tlie statute. This seems so plain that it is impossible to make it plainer by argument. If it be otherwise the Constitution is not the supreme law; it is neither necessary or useful; in any case, to inquire whether or not any act of Congress' was passed in pursuance of it; and the oath which every member of this court is required to take, that he “will administer justice without respect to persons, and do equal right to the poor and the rich, and faithfully perform .the duties incumbent upon him to the best of his ability and understanding, agreeably to the Constitution and laws of the United' States,” becomes an idle and unmeaning form.
The case before us is one of private right. The plaintiff in the court below sought to recover of the defendants a certain sum expressed on the face of a promissory note. The defendants insisted on the right, under the act of February 25th, 1862, to acquit themselves of their obligation by tendering in payment a sum nominally equal in United States notes. But the note had been executed before the passage'of the act, and the plaintiff insisted on his right under the Constitution to be paid the amount due in gold and silver. And it has not been, and cannot be, denied that the plaintiff was entitled to judgment according to his claim, unless bound by a constitutional law to accept the notes as coin.
Thus two’ questions were directly presented: Were the defendants relieved by the act from the obligation assumed in the contract? Could the plaintiff be compelled, by a judgment of the court, to' receive in payment a currency of different nature and value from that which was in the contemplation of the parties when the contract was made?
The Court of Appeals resolved 'both questions in the negative, and the defendants, in the original suit, seek the reversal-of ^hat judgment by writ of error.
*613It becomes our duty, therefore, to determine whether the act of February 25th, 1862, so far as.it makes United States notes a legal tender in payment of debts contracted prior to its passage, is constitutional and valid or otherwise. Under-a deep sense of our obligation to perform this .duty to the best of our ability and understanding,, we shall proceed to dispose of the case presented by the record.
We have already said, and it is generally, if not universally, conceded, that the government of the United States is one of limited powers, and that no department possesses any authority not granted by the Constitution.
It is not necessary, however, in order to prove the exist-; enee of a particular authority to show a particular and express grant. The design of the Constitution was to establish a government competent to the direction and administration of the affairs of a great nation, and, at the same time, to marls;, by sufficiently definite lines, the’sphere of its operations. To this end it was needful only to make express grants of general powers, coupled with a further grant of such incidental and auxiliary powers as might be required for the exercise of' the powers expressly granted. These powers are necessarily extensive. It has been found, indeed, in the practical ad* ministration of the government, that a very large part, if not the largest part, of its functions have been performed in the exercise of powers .thus -implied.
But the extension of power by implication was regarded with some apprehension by the wise men who framed, and by the intelligent citizens who adopted, the Constitution. This apprehension is manifest in the terms by which the grant of incidental and auxiliary powers is made. -All powers of this nature are included under the description of “ power to make all laws necessary and proper for carrying into execution the powers expressly granted, to Congress or vested by the Constitution in the government or in any of its departments or officers.”
The same apprehension is equally apparent in the tenth article of the amendments, which declares that “ the powers not delegated to the United States by the Constitution, nor *614prohibited by it to the States, are reserved to the States or the people.”
We do uot mean to say that either of these constitutional provisions is to be taken as restricting any exercise of power fairly warranted by legitimate derivation from one of the’ enumerated or express powers. The first was undoubtedly introduced to exclude all. doubt in respect to the existence of implied powers; while the words “ necessary and proper” were intended to have a “ sense,” to use the words of Mr. Justice Story, “ at once admonitory and directory,” and to require that the means used in the execution of an express power “ should be bond fide, appropriate to the end.”* The second provision was intended to have a like admonitory and directory sense, and to restrain the limited government established under the Constitution from the exercise of powers not clearly, delegated or derived by just inference from powers so delegated.
It has not been maintained in argument, nor, indeed, would any one, however slightly conversant with constitutional law, think of maintaining that there is in the Constitution auy express grant of legislative power to .make any description of credit currency a legal tender in payment of debts.
We must inquire then whether this can be done in the exercise of an implied power.
The rule for determining whether a legislative enactmeut can be supported' as an exercise of an implied power was stated by Chief Justice Marshall, speaking-for the whole court, in the case of McCullough v. The State of Maryland;† and the statement then made has ever since been accepted as a correct exposition of the Constitution. His words were these: “Let the end be legitimate, let it be within the scope of the Constitution, and all means which are appropriate, which are plainly adapted to that end, which are not prohibited, but consistent with the letter and spirit of the Constitution, are constitutional.” And in another part of the *615same opinion the practical application of this rule was thus illustrated: “Should Congress, in the execution of its powers, adopt measures which are prohibited by the Constitution, or should Congress, under the pretext of executing its powers, pass laws for the accomplishment of. objects not intrusted to the government, it would be the painful duty of this tribunal, should a case requiring such a .decision come before it, to say that such an act was not the law of the land.' But where the law is not prohibited, and is really calculated to effect any of the objects intrusted to the government, to undertake here to inquire into the degree of its necessity would be to pass the. liné which circumscribes the judicial department, and tread on legislative ground.”*
• It must be taken then as finally settled, so far as judicial decisions can settle anything, that the words “all laws necessary and proper for carrying into execution” powers expressly granted or vested, have, in the Constitution, a sense equivalent to that of the words, laws, not absolutely necessary indeed, but appropriate, plainly adapted t<5 constitutional'and legitimate- ends; laws not prohibited, but consistent with the letter and spirit of the Constitution; laws really calculated to effect objects intrusted to the government.
The question before us, then, resolves itself into this: “Is ‘the clause-which makes United States notes a legal tender for debts contracted' prior to its enactment, a law of the description' stated in the rule?”'
It .is not doubted that the power to establish a standard of value by which all other values may be measured, or, in other words, to determine what shall be lawful money and a legal tender, is in its nature, and of necessity, a governmental power.' It is. in all countries exercised by the government. In the United.Státes, so far as it relates to'the'precious metals, it is vested 'in Congress by the grant of t.he power to coin money. But can a power to impart these qualities to notes, or. promises to pay money,'when offered in discharge of pre*616existing debts, be derived from tbe coinage power, or from any other power expressly given ?
It is. certainly not the same power as the power to coin money. Nor is it in any reasonable or satisfactory sense an appropriate or plainly adapted means to the exercise of that power. Nor is there more reason for saying that it is implied in, or incidental to, the power to regulate the value of coined money of the United States, or of foreign coins. This power of regulation is a power to determine the weight, purity, form, impression, and denomination of the several coins, and their relation to each other, and the relations of foreign coins to the monetary unit of the United States.
Nor is the power to make notes a legal tender the same as the power to issue notes to be used as currency. The old Congress, under the Articles of Confederation, was clothed by express grant with the power to emit bills of credit, which are in fact notes for circulation as currency; and yet that Congress was not.clothed with the power to make these bills a legal tender in payment. And this court has recently held that the Congress, under the Constitution, possesses, as incidental to other powers, the same power as the old Congress to emit bills or notes; but it was expressly declared at the same time that this decision concluded nothing on the question of legal tender. Indeed, we are not aware that it has ever been claimed that the power to issue bills or notes has any identity with the power to make them a legal tender. On the contrary, the whole history of the country refutes that notion. The States have always, been held to possess the power to authorize and regulate the issue of bills for circulation by banks or individuals, subject, as has been lately determined, to the control of Congress, for the purpose of establishing and securing a National currency; and yet the States are expressly prohibited by the Constitution from making anything but gold and silver coin a legal tender. This seems decisive on the point that the power to issue notes and the power to make them a legal tender are not the same power, and that they have no necessary connection with each other.
But it has been maintained in argument that the power to *617make United States notes a legal tender in payment of all debts is a means appropriate and-plainly adapted to the execution of the power to carry on war, of the power to regulate commerce, and of the power to borrow money. If it is, and is not prohibited, nor inconsistent with the letter or spirit of the Constitution, then the'act which makes them such legal tender must be held to be constitutional.
Let us, then, first inquire whether it is an appropriate and plainly, adapted means for carrying on war? The affirmative argument maybe thus stated: Congress has power to declare and provide for carrying on war; Congress has also power to emit bills of credit, or circulating notes receivable for government dues and payable, so far at least as parties are willing to receive' them, in discharge of government obligations; it wij] facilitate the use of such notes in disbursements to make them a legal tender in payment of existing debts; therefore.Congress may make such notes a legal tender.
It is difficult to say to what express power the authority to make notes a legal tender in payment of pre-existing debts may not be upheld as incidental, upon the principles of this argument. Is there any power which does not involve the use of-money? And is there any doubt that Congress may issue and use bills of credit as money in the execution of any power ? The power to establish post-offices and post-roads, for example, involves the collection and disbursement of a great revenue. Is not the power to make notes a legal tender as clearly incidental to this power as to the war power?
The answer to this question does not appear to us doubtful. The argument, therefore, seems to prove too much. It carries the doctrine of implied powers very far beyond any extent hitherto given to it. It asserts that whatever in any degree promotes au end within the scope of a general power, whether, in the correct sense-of the word, appropriate or not, may be done in the exercise of an implied power.
Can this proposition be maintained ?
It is said that this is not a question for the court deciding a cause, but for Congress exercising.the power. But the decisive answer to this is that the admission of a legislative *618power to determine -finally what powers have the described relation as means to the execution of other powers plainly granted, and, then, to exercise absolutely and without liability, to question, -in cases involving private rights, the powers thus determined to have that relation, would completely change the nature.of American government. It would convert the government, which the people ordained as a government-of limited powers, into a-government of unlimited powers. It would confuse the boundaries which separate the executive and judicial from the legislative authority. It would obliterate every criterion which-this court, speaking through the venerated Chief Justice in the ease already cited, established for the determination of the.question whether legislative acts are constitutional or unconstitutional.
Undoubtedly among means appropriate, plainly adapted, really calculated, the legislature has unrestricted choice. Hut there can be no implied power to use means not within the description.
Now, then, let it be considered what has actually, been done in the provision of a National currency. In July and August, 1861, and February, 1862, the issue of sixty millions of dollars in United States notes, payable on demand, was authorized.* They were made receivable in payments, but were not declared a legal tender until March, 1862,† when the amount in circulation had been greatly reduced by receipt and cancellation. In 1862 and 1863‡ the issue'of four hundred and fifty millions in United States notes, payable not on demand, but, in effect, at the convenience of the government, was authorized, subject to certain restrictions as to fifty millions. These notes were made receivable for the bonds of the National loans, for all debts due to or from the United States, except duties on imports and interest on. the public- debt, and were also declared a legal tender. In March, 1863,§ the issue of notes for parts of a dollar was authorized to an amount not exceeding fifty millions of dollars. These notes were not declared a legal tender, but were *619made redeemable under regulations to be prescribed by tbe Secretary .of the Treasury. In February, 1863,* the issue of three hundred millions of dollars in notes of the National banking associations was authorized. These notes were made receivable to the same extent as United States notes, and provision was made to secure their redemption, but they were not made a legal tender.
The several descriptions of notes have since constituted, under the various acts of Congress,- the common currency of' the United States. The notes which were not declared a legal tender have circulated with-those which were so declared without unfavorable discrimination.
It may be added as a part of the history that other issues, bearing interest at various rates, were authorized and made a legal tender, except in redemption of bank notes, for face amount exclusive of interest. Such were the one and two years five per cent, notes and three years compound interest notes.† These notes never entered largely or permanently into the circulation; and there is no reason to think that their utility was increased or diminished by the act which declared them a legal tender for face amount. They need not be further considered here. They serve only to illustrate the tendency remarked by all who have investigated thq subject of paper money, to increase the volume of irredeemable issues, and to extend indefinitely the application of the quality of legal tender. That it was carried no farther during the recent civil war, and has been carried no farther since, is due to circumstances, the consideration of which does not belong to this discussion.
We recur, then, to the question under consideration. No one questions the general constitutionality, and not very many, perhaps, the general expediency of the legislation by which a note currency-has been authorized in recent years. The doubt is as to the power to declare a particular class of these notes to be a legal tender in payment of pre-existing debts.
*620The only ground upon which this power is asserted is, not that the .issue of notes was an appropriate and plainly adapted means for carrying on the war, for that is admitted: but that the making of them a legal tender to the extent mentioned was such a means.
Now, we have seen that of all tne notes issued those not declared a legal tender at all constituted' a very large proportion, and that they circulated freely and without discount.
It may be said that their equality in circulation and credit was due to the provision made by law for the redemption of this paper in legal tender notes.' But this provision, if at all useful in this respect, was of trifling importance compared with that which made them receivable for government dues. All modern history testifies that, in time of war espe-' daily, when taxes are augmented, large loans negotiated, and heavy disbursements made, notes issued by the authority of the government, and made receivable for dues of the government, always obtain at first a ready circulation; and even when not redeemable in coin, on demand, are as little and usually less subject to depreciation.than any other description of notes, for the redemption of which no better provision is máde. And the history of the legislation under consideration is, that it was upon this quality ofreeeivability, and not upon the quality of legal tender, that reliance for circulation was originally placed; for the receivability clause appears to have been in the original draft of the bill, while the legal tender clause seems to have been introduced at a later stage of its progress.
These facts certainly are not without weight as evidence that all the useful purposes of the notes would have been fully answered without making them a legal tender for preexisting debts. It is denied, indeed, by eminent writers, that the quality of legal tender adds anything at all to the credit or usefulness of government notes. They insist, on the contrary, that it impairs both. However this may be, it must be remembered that it is as a means to an end to be attained by the action of the government, that the implied *621power of making notes a legal tender in all payments is claimed under the Constitution. Now, how far is the government helped by this means? Certainly it cannot obtain new supplies or services at a cheaper rate, for no one will take the notes for more than they are worth at the time of the new contract. The price will rise in the ratio of the depreciation, and this is all that could happen if the notes were not made a legal tender. But it may be said that the depreciation will be less to him who takes them from the government, if the government will pledge to him its power tó compel his creditors to receive .them at par in payments. This is, as we have seen, by no means certain. If the quantity issued be excessive, and redemption uncertain and remote, great depreciation will take place; if, on the other hand, the quantity is only adequate to the demands of business, and confidence in early redemption is strong, the note's will circulate freely, whether made a legal tender or not.
■ But if it be admitted that some increase of availability is derived from making the notes a legal tender under new contracts, it by no means follows that any appreciable advantage is gained by compelling creditors to receive them in satisfaction of pre-existing debts. And there is abundant evidence, that whatever benefit is possible from that compulsion tasóme individuals or to the government, is far more than outweighed by the losses of property, the derangement of business, the fluctuations of currency and values, and the increase of prices to the people and the government, and the long train of evils which flow from the use of irredeemable paper money. It is true that these evils are not to be attributed altogether to making it a legal tender. But this increases these evils. It certainly widens their extent and protracts their continuance.
¥e are unable tó persuade ourselves that an expedient of this sort is an appropriate and plainly adapted means for the execution of the power' to declare and carry on war. If it adds nothing to the utility of the notes, it'cannot be uphold as a means to the end in furtherance of which the notes are issued. Nor can it, in our judgment, bo upheld as such, if, *622while facilitating in-some degree the circulation of the notes, it debases and injures the currency in its proper use to a much greater degree. And these considerations seem to Us equally applicable to the powers to regulate commerce and to borrow money. Both powers necessarily involve the use of money by the people and by the government, but neither, as we think, carries with it as an appropriate and plainly adapted means to its exercise, the power of . making circulating notes a legal tender in .payment of pre-existing debts.
But there is another view, which seems to us decisive, to whatever. express power the supposed implied power in question may be referred. In the rule stated by Chief Justice Marshall, the words appropriate, plainly adapted, really Calculated, are qualified by the limitation that the means must be not prohibited, but consistent with the letter and spirit of the Constitution. Nothing so prohibited or inconsistent can be regarded as appropriate, or plainly adapted, or really calculated means to any end.
Let us inquire, then, first, whether making bills of credit a legal tender, to the extent indicated, is consistent with the spirit of the Constitution,
Among the great cardinal principles of that instrument, no one is more conspicuous or more venerable than the establishment of justice. And what was intended by the establish-, ment of justice in the minds of the people who ordained it is, happily, not a matter of disputation. It is not left to inference or conjecture, especialty in its relations to contracts.
' When the Constitution was undergoing discussion in the Convention, the Congress of the Confederation was engaged i'u the consideration of the ordinance for the government of the territory northwest of the Ohio,-the only territory subject at that time to its regulation and control. By this ordinance certain fundamental articles of compact were established between the original States and the people and States of the territory, for the purpose, to use its own language, “ of extending the fundamental principles of civil and religious lib* erty, whereon these republics” (the States united under the Confederation), “ their laws, and constitutions are erected.” *623Among these fundamental principles was this: “ And in-the just preservation of rights and property it is understood and declared that no law ought ever to be made, or have force in the said territory, that shall in any manner whatever interfere with or affect private contracts or engagements bond fide and without fraud previously formed.”
The same-principle found more condensed expressionrin that most valuable provision of the Constitution of the United States, ever recognized as an efficient safeguard against injustice, that “no State shall pass any law impairing the obligation of contracts.”'
It is true that this prohibition is not applied in terms to the government of the United States. Congress has express power to enact bankrupt laws, and we do not say that a law made in the execution of any other express power, which, incidentally only, impairs the obligation of a contract, can be held to be unconstitutional for that reason..
But we think it clear that those who framed and those who adopted the Constitution, intended that the spirit of this -prohibition should pervade the entire body of legislation, and that the justice which the Constitution was ordained to establish was not thought by them to be compatible with legislation of an opposite tendency.' In other words, we cannot doubt that a law not made in pursuance of an express power, which necessarily and in its direct operation impairs the obligation of contracts, is inconsistent with the spirit of the Constitution.
Another provision, found in the-fifth amendment, must be considered in this connection. We refer to that which ordains that private property shall not- be taken for public use without compensation. This provision is kindred in spirit to that which forbids legislation impairing the obligation of contracts; but, unlike that, it is addressed directly and solely to the National govérnment. It does not, in terms, prohibit legislation-which appropriates the private property of one class of citizens to the use of another class.; but if such property cannot be taken for the benefit of all, without compensation, it is difficult to understand how it can be so *624taken for the benefit of a part without violating the spirit of the prohibition.
But there is another provision, in tlié same amendment, which,'in our judgment, cannot have its full and intended effect unless construed as a direct prohibition of the legislation which we- have been considering. It is that which declares that “ no person shall be deprived of life, liberty, or property,- without due process of law.”
It is not doubted that all the provisions of this amendment operate directly in limitation and restraint of the legislative powers conferred by the Constitution. The only question is, whether an act which compels all those who hold contracts for the payment of gold and silver money to ■accept in payment a currency of inferior value deprives such persons of. property without due process of law.
It -is quite clear, that whatever may be the operation of such an act, due process of law makes no part of it. . Does it deprive any person of property ? A very large proportion of the property of civilized men exists in the form of contracts. These contracts almost invariably stipulate for the payment of money. And we have already seen that contracts in the United States, prior to the act under consideration, for the payment of money, were contracts to pay the sums specified in gold and silver coin. And it is beyond doubt that the- holders of these contracts were and are as fully entitled to the protection of this constitutional provision as the holders of any other description of property.
But.it may be said that the holders of no description of property are protected by it from legislation which incidentally only impairs its value. And it may be urged in illustration that the holders of stock in a turnpike, a bridge, or a manufacturing corporation, or an insurance company, or a bank, cannot invoke its protection against legislation which, by authorizing similar works or corporations, reduces its price in the market. But all this does not appear to meet the real difficulty. In the cases mentioned the injury is purely contingent and incidental. In the case we are considering it is direct and inevitable.
*625If in the cases mentioned the holders of the stock were required by law to convey it on demand to any one who should think fit to. offer half its value for it, the analogy would be more obvious. No one probably .could be found to contend that an act enforcing the acceptance of fifty or seventy-five acres of land in satisfaction of a contract to convey a hundred would not come within the prohibition against arbitrary privation of property.
We confess ourselves unable to perceive any solid distinction between such an act and an act compelling all citizens to accept, in satisfaction of all contracts for money, half or three-quarters or any other proportion less than the whole of the value actually due, according to their terms. It is difficult to conceive what act would take private property without process of law if such an act would not.
We are obliged to conclude that an. act making mere promises to pay dollars a legal tender in payment of debts previously contracted, is not a means appropriate, plainly adapted, really calculated to carry into effect any express power vested in Congress; that such an act is inconsistent with the spirit of the Constitution; and that it is prohibited by the Constitution.
It is not surprising that amid the tumult of the late civil war, and under the influence of apprehensions for the safety of the Republic almost universal, different views, never before entertained by American statesmen or jurists, were adopted by many. The time was not favorable to considerate reflection upon the constitutional limits of legislative or executive authority. If power was assumed from patriotic motives, the assumption found ready justification in patriotic hearts. Many who doubted yielded their doubts; many who did not doubt were silent. Some who were strongly averse to making government notes a legal tender felt themselves constrained to acquiesce in the views of the advocates of the measure. Not a few who then insisted upon its necessity, or acquiesced in that view, have, since the return of peace, and under the influence of the calmer time, reconsidered their conclusions, *626and now concur in those which we have just announced. These conclusions seem to' us to be fully sanctioned by the letter and spirit of the Constitution.
We are obliged, therefore, to hold that the defendant in error was not bound to receive from the plaintiffs the currency-tendered to him in payment of their note, made before the passage of the act of February 25th, 1862. It follows that the judgment of the Court of Appeals of Kentucky must be affirmed.
It is proper to say that Mr. Justice Grier, who was a member of the court when this cause was decided in conference,* and when this opinion was directed to be read,† stated his judgmeut to be that the legal tender clause, properly construed, has no application to debts contracted prior to its enactment; but that upon the construction given to the act by the other judges he concurred in the opinion that the clause, so far as it makes United States notes a legal tender for such debts, is not warranted by the Constitution.
JüD&MENT AFFIRMED.
Lane County v. Oregon, 7 Wallace, 71.
Bronson v. Rodes, 7 Id. 229; Butler v. Horwitz, Ib. 258.
1 Story on the Constitution, § 921.
2 Story on the Oonstitution, p. 142, § 1253.
4 Wheaton, 421.
4 Wheaton, 423.
12 Stat. at Large, 259, 313, and 338.
Ib. 345, 532, and 709.
Ib. 370.
Ib. 711.
12 Stat. at Large, 669.
13 Id. 218, 425.
November 27th, 1869.
January 29th, 1870.