Strength of mind is exercise, not rest.

“I think, therefore I am” is the statement of an intellectual who underrates toothaches.

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

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.

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

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

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

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

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

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

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

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

my mind is
a big hunk of irrevocable nothing