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

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

my mind is
a big hunk of irrevocable nothing

Your mind’s got to eat, too.

The sleep of reason produces monsters.

In psychoanalysis nothing is true except the exaggerations.

Imagination continually outruns the creature it inhabits.

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

We need strength, we need energy, we need quickness, and we need brain in this country to turn it around.

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

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

To be too conscious is an illness—a real thoroughgoing illness.

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