"Assuming that the question before us is to be resolved at such a level of philosophical abstraction, in such isolation from the traditions of American society, as by simply applying "reasoned judgment," I do not see how that could possibly have produced the answer the Court arrived at in Roe v. Wade, 410 U.S. 113, 93 S.Ct. 705, 35 L.Ed.2d 147 (1973). Today's opinion describes the methodology of Roe, quite accurately, as weighing against the woman's interest the State's " 'important and legitimate interest in protecting the potentiality of human life.' " Ante, at ____ (quoting Roe, supra, at 162, 93 S.Ct., at 731). But "reasoned judgment" does not begin by begging the question, as Roe and subsequent cases unquestionably did by assuming that what the State is protecting is the mere "potentiality of human life." See, e.g., Roe, supra, at 162, 93 S.Ct., at 731; Planned Parenthood of Central Mo. v. Danforth, 428 U.S. 52, 61, 96 S.Ct. 2831, 2837, 49 L.Ed.2d 788 (1976); Colautti v. Franklin, 439 U.S. 379, 386, 99 S.Ct. 675, 681, 58 L.Ed.2d 596 (1979); Akron v. Akron Center for Reproductive Health, Inc., 462 U.S. 416, 428, 103 S.Ct. 2481, 2491, 76 L.Ed.2d 687 (1983) (Akron I ); Planned Parenthood Assn. of Kansas City, Mo., Inc. v. Ashcroft, 462 U.S. 476, 482, 103 S.Ct. 2517, 2520, 76 L.Ed.2d 733 (1983). The whole argument of abortion opponents is that what the Court calls the fetus and what others call the unborn child is a human life. Thus, whatever answer Roe came up with after conducting its "balancing" is bound to be wrong, unless it is correct that the human fetus is in some critical sense merely potentially human. There is of course no way to determine that as a legal matter; it is in fact a value judgment. Some societies have considered newborn children not yet human, or the incompetent elderly no longer so. The authors of the joint opinion, of course, do not squarely contend that Roe v. Wade was a correct application of "reasoned judgment"; merely that it must be followed, because of stare decisis. Ante, at ____. But in their exhaustive discussion of all the factors that go into the determination of when stare decisis should be observed and when disregarded, they never mention "how wrong was the decision on its face?" Surely, if "[t]he Court's power lies . . . in its legitimacy, a product of substance and perception," ante, at ____, the "substance" part of the equation demands that plain error be acknowledged and eliminated. Roe was plainly wrong—even on the Court's methodology of "reasoned judgment," and even more so (of course) if the proper criteria of text and tradition are applied. The emptiness of the "reasoned judgment" that produced Roe is displayed in plain view by the fact that, after more than 19 years of effort by some of the brightest (and most determined) legal minds in the country, after more than 10 cases upholding abortion rights in this Court, and after dozens upon dozens of amicus briefs submitted in this and other cases, the best the Court can do to explain how it is that the word "liberty" must be thought to include the right to destroy human fetuses is to rattle off a collection of adjectives that simply decorate a value judgment and conceal a political choice. The right to abort, we are told, inheres in "liberty" because it is among "a person's most basic decisions," ante, at ____; it involves a "most intimate and personal choic[e]," ante, at ____; it is "central to personal dignity and autonomy," ibid.; it "originate[s] within the zone of conscience and belief," ibid.; it is "too intimate and personal" for state interference, ante, at ____; it reflects "intimate views" of a "deep, personal character," ante, at ____; it involves "intimate relationships," and notions of "personal autonomy and bodily integrity," ante, at ____; and it concerns a particularly " 'important decisio[n],' " ante, at ____ (citation omitted).2 But it is obvious to anyone applying "reasoned judgment" that the same adjectives can be applied to many forms of conduct that this Court (including one of the Justices in today's majority, see Bowers v. Hardwick, 478 U.S. 186, 106 S.Ct. 2841, 92 L.Ed.2d 140 (1986)) has held are not entitled to constitutional protection—because, like abortion, they are forms of conduct that have long been criminalized in American society. Those adjectives might be applied, for example, to homosexual sodomy, polygamy, adult incest, and suicide, all of which are equally "intimate" and "deep[ly] personal" decisions involving "personal autonomy and bodily integrity," and all of which can constitutionally be proscribed because it is our unquestionable constitutional tradition that they are proscribable. It is not reasoned judgment that supports the Court's decision; only personal predilection."