The mind is not, I know, a highway but a temple, and its doors should not be carelessly left open.

Any man could, if he were so inclined, be the sculptor of his own brain.

The brain is an unreliable organ, it is monstrously great, monstrously developed. Swollen, like a goiter.

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

What is outside my mind means nothing to it.

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

my mind is
a big hunk of irrevocable nothing

Not all heads have a brain.

Your mind’s got to eat, too.

What is the hardest task in the world? To think.

The mind of man is capable of anything.

As is the face, so is the mind.

A mind lively and at ease can do with seeing nothing, and can see nothing that does not answer.