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

Understanding is a very dull occupation.

Imagination continually outruns the creature it inhabits.

The march of the human mind is slow.

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

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

my mind is
a big hunk of irrevocable nothing

The brain may be regarded as a kind of parasite of the organism, a pensioner, as it were, who dwells with the body.

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

Is there no way out of the mind?

From a man’s face, I can read his character. If I can see him walk, I know his thoughts.

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.

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