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.

Strength of mind is exercise, not rest.

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

The mind of man is capable of anything.

my mind is
a big hunk of irrevocable nothing

Every thought is, strictly speaking, an afterthought.

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

Madness need not be all breakdown. It may also be breakthrough.

The march of the human mind is slow.

Not all heads have a brain.

The mind is not, I know, a highway but a temple, and its doors should not be carelessly left open.

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