Theories are just fantasies. And they change.

One of the most difficult things for a writer in this business to accept is the uncertain fate of one's work.

We think we know what we are doing. We have always thought so. We never seem to acknowledge that we have been wrong in the past, and so might be wrong in the future. Instead, each generation writes off earlier errors as the result of bad thinking by less able minds - and then confidently embarks on fresh errors of its own.

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

Even if you don't believe in God, you still have to believe in something that gives meaning to your life, and shapes your sense of the world. Such a belief is religious.

Personally, I don't deal much in theory. I have to deal with the facts. And on the basis of facts, I don't see much difference in the behavior of men and women.

Exercise invigorates the body and sharpens the mind.