Though this be madness, yet there is method in’t.

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

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

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

Imagination continually outruns the creature it inhabits.

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.

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

Understanding is a very dull occupation.

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

The sleep of reason produces monsters.

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

Strength of mind is exercise, not rest.