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

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

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

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

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

As is the face, so is the mind.

The mind of man is capable of anything.

Your mind’s got to eat, too.

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

Brain, n. An apparatus with which we think that we think.

What is outside my mind means nothing to it.

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