There is no firm reason to anticipate that the intellectual capacities of peoples geographically separated in their evolution should prove to have evolved identically. Our wanting to reserve equal powers of reason as some universal heritage of humanity will not be enough to make it so.

One could not be a successful scientist without realizing that, in contrast to the popular conception supported by newspapers and mothers of scientists, a goodly number of scientists are not only narrow-minded and dull, but also just stupid.

No good model ever accounted for all the facts, since some data was bound to be misleading if not plain wrong.

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.

People say it would be terrible if we made all girls pretty. I think it would be great.

Our goal should be to understand our differences.

If we don't play God, who will?