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

Not all heads have a brain.

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

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

Is there no way out of the mind?

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

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

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

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

Understanding is a very dull occupation.

What a torture to talk to filled heads that allow nothing from the outside to enter them.

The mind of man is capable of anything.

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