And that's how things are. A day is like a whole life. You start out doing one thing, but end up doing something else, plan to run an errand, but never get there. . . . And at the end of your life, your whole existence has the same haphazard quality, too. Your whole life has the same shape as a single day.

God creates dinosaurs, God kills dinosaurs, God creates man, man kills God, man brings back dinosaurs.

Auschwitz exists because of politicized science.

We are all assumed, these days, to reside at one extreme of the opinion spectrum, or another. We are pro-abortion or anti-abortion. We are free traders or protectionists. We are pro-private sector or pro-government. We are feminists or chauvinists. But in the real world, few of us hold these extreme views. There is instead a spectrum of opinion.

Safety is the last refuge of the scoundrel!

Sometimes I think man needs to feel a special position within nature, and this leads him to believe that he is either specially hated by other animals or specially cherished. Instead of the truth, which is that he's just another animal on the plain. A smart one, but just another animal.

Theories are just fantasies. And they change.