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

—B.F. Skinner, 1969

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

—Claude Lévi-Strauss, 1962

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.

—John Kenneth Galbraith, 1958

Imagination is the secret and marrow of civilization. It is the very eye of faith.

—Henry Ward Beecher, 1887

The mind of man is capable of anything.

—Guy de Maupassant, 1884

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

—Tetsuro Matsuzawa, 2010

What the brain does by itself is infinitely more fascinating and complex than any response it can make to chemical stimulation.

—Ursula K. Le Guin, 1971

A mind lively and at ease can do with seeing nothing, and can see nothing that does not answer.

—Jane Austen, 1815

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

—George Santayana, 1920

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

—Arthur Schopenhauer, 1851

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

—Stanisław Jerzy Lec, 1957

Not all heads have a brain.

—French proverb

In psychoanalysis nothing is true except the exaggerations.

—Theodor Adorno, 1951