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 highest possible stage in moral culture is when we recognize that we ought to control our thoughts.

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

Understanding is a very dull occupation.

As is the face, so is the mind.

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

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

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

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

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

The mind of man is capable of anything.

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

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