“We’re not all equal, it’s simply not true. That isn’t science.”

I turned against the left wing because they don’t like genetics, because genetics implies that sometimes in life we fail because we have bad genes. They want all failure in life to be due to the evil system.

If scientists don’t play God, who will?

I have been much blessed.

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

Biology has at least 50 more interesting years.

One of the greatest gifts science has brought to the world is continuing elimination of the supernatural.

I don’t think we are here for anything. We’re just products of evolution. You can say, “Gee, your life must be pretty bleak if you don’t think there’s a purpose.” But I’m anticipating a good lunch.

The brain, is the most complex thing we have yet discovered in our universe.

There are many people of color who are very talented.

Nothing new that is really interesting comes without collaboration.

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.

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.

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 only one science, physics: everything else is social work.

Science that leads over the horizon depends on gathering the best minds and enabling them to do what the best minds naturally seek to do: pursue the most thrilling questions of the time.

You’ve never heard of an English lover. Only an English patient.

I have spent over half my life teaching love and brotherhood, and I feel that it is better to continue to try to teach or live equality and love than it would be to have hatred or prejudice.

The length of a man’s outspread arms is equal to his height.

We must do the work that justice and equality calls us to do.

I am fond of pigs. Dogs look up to us. Cats look down on us. Pigs treat us as equals.

There is no charm equal to tenderness of heart.

Don’t worry. You’re just as sane as I am.

Every morning was a cheerful invitation to make my life of equal simplicity, and I may say innocence, with Nature herself.

Nobody can give you freedom. Nobody can give you equality or justice or anything. If you’re a man, you take it.