The march of the human mind is slow.

The mind of man is capable of anything.

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

my mind is
a big hunk of irrevocable nothing

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

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

Brains are the only things worth having in this world.

Your mind’s got to eat, too.

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 most potent weapon in the hands of the oppressor is the mind of the oppressed.

The real question is not whether machines think but whether men do.

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

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