"This Texas federal appeal and its Georgia companion, Doe v. Bolton, post, p. 179, present constitutional challenges to state criminal abortion legislation. The Texas statutes under attack here are typical of those that have been in effect in many States for approximately a century. The Georgia statutes, in contrast, have a modern cast, and are a legislative product that, to an extent at least, obviously reflects the influences of recent attitudinal change, of advancing medical knowledge and techniques, and of new thinking about an old issue. We forthwith acknowledge our awareness of the sensitive and emotional nature of the abortion controversy, of the vigorous opposing views, even among physicians, and of the deep and seemingly absolute convictions that the subject inspires. One's philosophy, one's experiences, one's exposure to the raw edges of human existence, one's religious training, one's attitudes toward life and family and their values, and the moral standards one establishes and seeks to observe, are all likely to influence and to color one's thinking and conclusions about abortion. In addition, population growth, pollution, poverty, and racial overtones tend to complicate and not to simplify the problem. Our task, of course, is to resolve the issue by constitutional measurement, free of emotion and of predilection."