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

It is far, far better and much safer to have a firm anchor in nonsense than to put out on the troubled seas of thought.

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

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

Understanding is a very dull occupation.

Brains are the only things worth having in this world.

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

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

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

As is the face, so is the mind.

Strength of mind is exercise, not rest.

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

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