The universe is an object of thought at least as much as it is a means of satisfying needs.

There is no female mind. The brain is not an organ of sex. As well speak of a female liver.

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

Is there no way out of the mind?

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

Imagination continually outruns the creature it inhabits.

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

The human mind is an evolutionary product, just like the human body.

The sleep of reason produces monsters.

The mind of man is capable of anything.

Madness need not be all breakdown. It may also be breakthrough.

As is the face, so is the mind.

Every thought is, strictly speaking, an afterthought.