Racists have often used pseudoscience to justify their socially damaging views; watch these films to see how science, by replacing ignorance with knowledge, can undo that damage.

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

Our goal should be to understand our differences.

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.

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

The brain is the last and grandest biological frontier, the most complex thing we have yet discovered in our universe. It contains hundreds of billions of cells interlinked through trillions of connections. The brain boggles the mind.

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.