Social and Personal Ethics: The Subject of Abortion It’s a child not a choice, a famous bumper sticker that voices the opinion of people who oppose abortion. In the book Social and Personal Ethics, John T. Noonan Jr., a law professor at University of California Berkeley, and Mary Anne Warren, a philosophy professor at San Francisco State University argue their views on the subject of abortion. The main question that these two professors argue over is how to determine the humanity of a being? First, the views of John T. Noonan Jr., and his definition of a human being is when the spermatozoa enters into t