Knowing "why" (an idea) is more important than learning "what" (the fact).

I have a son, who is a... not an ordinary form of schizophrenia, but clearly, cannot take care of himself. And the great fear of then, of all parents is, when the parents die, who takes care of your child? And the answer is: they become homeless.

I'm basically a libertarian. I don't want to restrict anyone from doing anything unless it's going to harm me. I don't want [to] pass a law stopping someone from smoking. It's just too dangerous. You lose the concept of a free society. Since we are genetically so diverse and our brains are so different, we're going to have different aspirations.

The pace of discovery is going unbelievably fast.

The ever quickening advances of science made possible by the success of the Human Genome Project will also soon let us see the essences of mental disease. Only after we understand them at the genetic level can we rationally seek out appropriate therapies for such illnesses as schizophrenia and bipolar disease.

Today, the theory of evolution is an accepted fact for everyone but a fundamentalist minority, whose objections are based not on reasoning but on doctrinaire adherence to religious principles.

(The National Cancer Program is) a bunch of (obscenity).