Opinion by
Mr. Justice Stewart,It may be that because of modern innovations on the common law respecting the property rights of married women, the venerable estate known as estate by entireties has outlived the purpose of its creation and is out of harmony with present conditions. However this may be, if change is desired, it must come through legislative action and not through judicial construction. This estate is too well established and too well defined to be subject to judicial impairment. Recognizing its very anomalous character we have been careful, as all our cases show, to give effect to these peculiar incidents which naturally and logically attach, especially to its chief distinguishing incident which exempts it from the ordinary legal process to which all other estates are subject. Fundamentally the estate rests on the legal unity of husband and wife; it is therefore a unit, not made up of divisible parts subsisting in different natural persons, but is an indivisible whole, vested in two persons actually distinct, yet to legal intendment one and the same. Each is seized of the whole estate from its incep*523tion, and upon the death of one, while the right of survivorship remains to the other, that other takes no new title or estate. “A conveyance to husband and wife creates neither a tenancy in common nor a joint tenancy. The estate of joint tenants is a unit made up of divisible parts; that of husband and wife is also a unit; but it is made up of indivisible parts. In the first case there are several holders of different moieties or portions, and upon the death of either the survivor takes a new estate. He acquires by survivorship the moiety of his deceased co-tenant. In the last case, although there are two natural persons, they are but one person in law, and upon the death of either, the survivor takes no new estate. It is a mere change in the properties of the legal person holding and not an alteration in the estate holden. The loss of an adjunct merely reduces the legal personage holding the estate to an individuality identical with the natural person. The whole estate continues in the survivor the same as it would continue in a corporation after the death of one of the corporators. This has been the settled law for centuries”: Stuckey v. Keefe, 26 Pa. 397.
It is this striking peculiarity of the estate — the entirety alike in husband and wife — that operates to exempt it from execution and sale at the suit of a creditor of either separately. The enforcement of such process would be the taking of the property of one to pay the debt of another. But may not the interest of either be seized in satisfaction of his or her appropriate and exclusive debt? Before answering let us clearly understand what is here meant by interest. For convenience of illustration take the case of a husband. Towards everybody in the world except the wife he has exclusive possession during her lifetime, and his right to the enjoyment of the estate during this period may not be interfered with at the suit of his creditor. So much is conceded, and has been expressly decided by this court in a number of cases, notably in McCurdy v. Canning, 64 Pa. *52439. With possession denied a purchaser at an enforced sale during the joint life of the parties to the estate, what is there to acquire by purchase? Nothing but a bare expectancy, a chance that the husband may survive the wife and have the entirety to himself. May that expectancy be made the subject of a judicial sale? Certainly never up to this time have we said that it can be. The case of Fleek v. Zillhaver, 117 Pa. 213, marks the extremest limit to which we have gone in subjecting estates of this character to demands of separate creditors. We cannot allow that that case was an attempt to modify or escape from conditions which up to that time had been universally recognized as necessarily resulting from the nature and character of this peculiar estate. On the contrary, the result there reached can be vindicated only as it can be shown to be in harmony with these conditions ; for it was along lines thought to be entirely consistent with these that the conclusion there expressed was reached. The controversy there arose after the death of the wife. During the continuance of the estate creditors of the husband obtained judgments against him. Later on husband and wife joined in a mortgage of the land. Upon survival by the husband execution was issued on the judgments that had been obtained against him and the land was sold thereunder. A sci. fa. on the first mortgage followed, in which the party holding purchaser at sheriff’s sale was served as terre tenant. The efficiency of the sheriff’s sale to pass title was the question in dispute, and this was the ruling of the court: “It was that kind of estate (entireties) which was bound by the lien of the mortgage given by Mary Holcomb; and it was the same kind of estate which was bound by the lien of the judgment against her husband. As against the wife, the mortgage was undoubtedly the first and indeed the only lien. As against the husband, the judgment was the first lien and the mortgage the second, simply because the judgment was obtained before the mortgage was given. Had *525the wife survived, the mortgage would certainly have had precedence to the exclusion of the judgment, because the estate bound by the lien of the judgment was defeasible by the death of the husband before the wife. For the same reason, if the husband survived the wife the estate of the latter was divested, and the mortgage only became operative against the husband because he had joined in its execution. But as to him it was not the first lien, he having become subject to a judgment at a time anterior to the giving of the mortgage.”
This case stands as authority with respect to what it expressly rules, viz: that the interest of husband and wife where they hold by entireties may be the subject of lien, and that upon the death of either the lien against the survivor may be enforced. It is to be observed that it does not rule that there can be a severance in ownership in any other way than by the death of one or other of the parties, or by voluntary alienation by both. So it will become apparent on a recital of the facts we have here, that the present case falls without the scope of that. Here the estate in the land as originally created continues, and what we have tó determine is the capacity of the parties, husband and wife, by their joint deed to convey the interest of both free and discharged of the lien of the husband’s judgments. The property was acquired by deed of conveyance to husband and wife in 1903. On the 2nd of July, 1909, the husband, Ernest H. Beihl, by the United States Circuit Court for the Eastern District of Pennsylvania, was adjudged a bankrupt, his wife not being a party to the proceeding or consenting thereto. On the same day several judgments were entered against the husband by creditors who subsequently filed their respective claims with the referee appointed in the bankruptcy proceedings. In September, 1911, Beihl and his wife entered into articles of agreement with William J. Martin, the defendant, whereby for consideration of $6,500 they covenanted to sell and convey the property so above ac*526quired to said Martin, by good and sufficient deed in fee simple “clear of any and all judgments and defects of every kind, and particularly, clear of any contingent claim of ownership or interest which might or could be enforced against the said premises.” The matter is submitted on a case stated which provides that if the court shall be of opinion that a proper deed from plaintiffs to defendant will convey such title to the said premises as is stipulated for in the agreement, then judgment shall be entered for the plaintiff. The fact that we have here a referee or assignee in bankruptcy adds nothing to the complications. Any one claiming an interest in the premises through such an officer would be in exactly the same position as a purchaser at sheriff’s sale. The same results must follow whether the attempted severance of the title is by assignee or sheriff. We may therefore disregard the bankruptcy feature of the case, and address ourselves to the naked question whether under a joint conveyance from husband and wife, the purchaser will take the estate divested of separate liens acquired against either, if any. No case can be pointed to in our reports where the exact question has been raised and met. We are therefore thrown back on general principles so far as applicable to the peculiar features of this estate. We start in the discussion with an admission which the case of Fleek v. Zillhaver, supra compels, that the judgments here obtained against the husband were liens. But upon what? Certainly not upon the entirety that was in the husband, for the entirety of estate was in the wife equally with the husband, and being in its nature indivisible, it would follow necessarily that any encumbrance upon the estate of the one would rest upon that of the other, a result which of course could not be justified or allowed except as the inherent attributes of the estate are to be wholly disregarded. There remains to the husband a right of survivorship, by virtue of which, in case he survive the wife, while taking no es*527tate, jet because the entirety in the wife is by her death extinguished, his entirety embraces every interest in the estate. Contingent though this ultimate divestiture be, the expectancy is nevertheless a vested interest, and as such may be the subject of lien. All possible titles, vested or contingent, in land, under our law may be taken in execution and sold provided it be a real interest, whether legal or equitable. “Accordingly,” says Tilgman, C. J., in Carkhuff v. Anderson, 3 Binn. 4, “it has been long settled that a judgment is a lien on every kind of equitable interest in lands. It is a lien on every kind of right vested in the debtor at the time of the judgment.” The right to such a lien is not dependent alone on statutory authority. At common law judgments were not liens upon land, but the lien resulted from lands being subjected by statute to be taken in execution, and from this right the land was held bound from the date of the judgment. Our statutes with respect to liens simply enlarge and extend them. It was this contingent expectant interest in the husband that was in contemplation when in Meek v. Zillhaver, supra, this court held that the judgment against the husband acquired a lien at its inception. Admitting then the lien on the expectant interest, the question occurs when is it enforcible? At once, or only upon the realization of the expectancy? A little reflection upon the nature of the estate by entireties should make it apparent, we think, that while the estate continues it is utterly impossible for either party, without the other joining, to sell or assign his or her interest therein, even the expectancy of survivorship. The rights of the parties are fixed by the deed of conveyance to them, and by that instrument each took an entirety made up of indivisible parts. Any alienation by one, the other not consenting, of any interest whatever in the estate, if allowed, would be an abridgment pro tanto of the rights of the other. By their joint act they admittedly have the right to sell *528and dispose of the whole estate; by their joint act they may strip the estate of its attributes and create a wholly different estate in themselves; but neither can divest himself or herself of any part without in some way infringing upon the rights of the other. The wife has the right to initiate as well as the husband. Suppose she desire to sell the land — a right which is hers — and the husband consent, what does his consent amount to if he has parted with his expectancy of survivorship to a stranger? Such circumstance would operate to deny to the wife the enjoyment of an inseparable incident of ownership, the right of alienation. Now, stating it broadly but correctly, nothing can be taken in execution and sold as the property of a debtor except property over which the debtor has the right of disposition by sale or otherwise. If then the husband cannot sell or dispose of his expectancy of survivorship, it follows that it may not be taken in execution. By this reasoning we reach the conclusion that the lien on the expectant interest of the husband becomes enforcible only when the expectancy ripens into a realized fact; then execution is not upon an expectancy but upon an actual existing estate. Another unavoidable conclusion results which must prove fatal to the appellant’s contention here. If the husband may not alien his right of expectancy, and if because of this the expectancy may not be taken in execution — since in either case it would be an appropriation of the wife’s right of property in that it would deprive her of the right to sell with the husband’s consent — for equal reason a judgment operating as a lien upon the husband’s expectancy would be an interference with the wife’s right of alienation with the consent of the husband, except as that lien is divested by such sale. The owner of such lien must hold it subject to its possible extinction in either of two events, the predecease of the husband, or the alienation of the estate by the joint act of the parties. The *529efficiency of the lien depends upon the nonhappening of either.
The effect sought to be given the case of Fleek v. Zillhaver, supra, has made this discussion seem necessary, But for that case we might well have rested this on what we regard as the decided weight of authority in other jurisdictions touching the questions here directly involved. We attempt no discussion of these conflicting decisions. They may be found cited and reviewed in a very carefully prepared annotation in the case of Jordan v. Reynolds, Maryland Court of Appeals, reported in 9 L. R. A. (N. S.) — page 1026, where the following conclusion is expressed by the learned editor. “The weight of authority founded as we think upon the better reasoning, is that such acts (the reference being to enabling acts with respect to rights of property in married women) do not in any way effect estates by entirety, except that they deprive the husband of the right to the possession and enjoyment of the property held by himself and wife in this manner, to the exclusion of the wife. That such acts have the effect of freeing the wife’s property from any liability to his creditors, and that, therefore, her rights to the possession and enjoyment of property held in common with her husband by entirety cannot in any way be interfered with by his creditors; and hence the entire property, during their joint lives, is free from judgment or execution lien directed against either of them?” In this conclusion we entirely concur, saving, however, whatever exception may be required to give effect as above indicated to the doctrine asserted in Fleek v. Zillhaver.
The decisions holding to a different view than that we here express would seem to rest largely upon considerations of policy; the governing consideration in each seeming to be that the exemption of the estate from executions and liens directed against husband or .wife would be an invitation to fraud, and would operate *530as a shield of protection against the just demands of creditors. And this view has been strongly pressed upon our attention in the present case. But fixed rules of law do not give way to expediency or policy. If they did, and the question here was one of policy, our conclusion would be the same; for as between the poli cies suggested, we would incline to that which would prevent a husband’s expectancy in cases like this from being huckstered about and made the subject of wagering contracts of dangerous character, rather than to one which would permit such traffic in order that creditors might have a security upon which they had no right to rely when they extended credit.
The learned court below adjudged the deed in this case from husband and wife sufficient to pass title free from the effect of the bankruptcy proceedings and the judgments against the husband, and free from any contingent interest or ownership therein by the said trustee in bankruptcy in the event of the bankrupt surviving his wife. In this the court was correct. The exceptions are overruled and the judgment is affirmed.