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

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

my mind is
a big hunk of irrevocable nothing

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

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

Is there no way out of the mind?

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

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

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

The march of the human mind is slow.

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

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

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