We need strength, we need energy, we need quickness, and we need brain in this country to turn it around.

Not all heads have a brain.

Imagination is the secret and marrow of civilization. It is the very eye of faith.

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

Understanding is a very dull occupation.

Is there no way out of the mind?

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

The brain may be regarded as a kind of parasite of the organism, a pensioner, as it were, who dwells with the body.

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

Your mind’s got to eat, too.

The mind of man is capable of anything.

Sanity is madness put to good uses; waking life is a dream controlled.

Though this be madness, yet there is method in’t.