The most remarkable discovery ever made by scientists is science itself. The discovery must be compared in importance with the invention of cave-painting and of writing.

It is important that students bring a certain ragamuffin, barefoot irreverence to their studies; they are not here to worship what is known, but to question it.

No science is immune to the infection of politics and the corruption of power.

Ask an impertinent question and you are on the way to the pertinent answer.

Man is unique not because he does science, and his is unique not because he does art, but because science and art equally are expressions of his marvelous plasticity of mind.

Knowledge is an unending adventure at the edge of uncertainty.

The hand is the cutting edge of the mind.

We have to understand that the world can only be grasped by action, not by contemplation. The hand is more important than the eye ... The hand is the cutting edge of the mind.

Man masters nature not by force, but by understanding

Dissent is the mark of freedom.

One aim of physical sciences had been to give an exact picture the material world. One achievement of physics in the twentieth century has been to prove that that aim is unattainable.

Always do what you are afraid to do.

Most men fail not through lack of education but from lack of dogged determination from lack of dauntless will.

A rational man never distorts or corrupts his own standards and judgment in order to appeal to the irrationality, stupidity, or dishonesty of others.

It is an artist's duty to be on the wrong end of the see-saw.

God really is in the business of blessing his people in unusual ways so his goodness and his greatness will be declared among all peoples.

It's a pity more men are not bastards by birth instead of vocation.

I am so proud of Amelia Boynton. I can burst with pride.

We all think we're going to get out of debt.

Well, writing was what I wanted to do, it was always what I wanted to do. I had novels to write so I wrote them.

Other arms reach out to me, Other eyes smile tenderly, Still in peaceful dreams I see, The road leads back to you.