“We have to acknowledge (to ourselves, at least) that many questions we want the "right" answers to just don't have any. These are the questions about the morality of stem-cell research or abortion or affirmative action or gay marriage or our obligations to future generations. Many enlightened people, including many scientists, think that reasonable people can eventually find the right answers to such questions. Alas, it will turn out that all anyone can really find are the answers that they like.”