It is far, far better and much safer to have a firm anchor in nonsense than to put out on the troubled seas of thought.

The march of the human mind is slow.

Is there no way out of the mind?

Your mind’s got to eat, too.

“I think, therefore I am” is the statement of an intellectual who underrates toothaches.

The real question is not whether machines think but whether men do.

What the brain does by itself is infinitely more fascinating and complex than any response it can make to chemical stimulation.

From a man’s face, I can read his character. If I can see him walk, I know his thoughts.

The sleep of reason produces monsters.

Every thought is, strictly speaking, an afterthought.

Imagination continually outruns the creature it inhabits.

Brain, n. An apparatus with which we think that we think.

Don’t lose your mind unless you have paid for it.