Science moves with the spirit of an adventure characterized both by youthful arrogance and by the belief that the truth, once found, would be simple as well as pretty.

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.

Do things as soon as you can. If a decision needs to be made, make it. It gives you more time to change your mind.

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.

We're not all equal, it's simply not true. That isn't science.

Ultimately, we'll help the people we discriminate against if we try to understand more about them; genetics will lead to a world where there is a sympathy for the underdog.

[As a young man ] I came to the conclusion that the church was just a bunch of fascists that supported Franco. I stopped going on Sunday mornings and watched the birds with my father instead.