If anything affects your eye, you hasten to have it removed; if anything affects your mind, you postpone the cure for a year.

What is outside my mind means nothing to it.

Is there no way out of the mind?

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

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

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

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

In psychoanalysis nothing is true except the exaggerations.

The sleep of reason produces monsters.

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

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

Imagination continually outruns the creature it inhabits.

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