Thomas Henry Huxley

The great end of all human endeavour is to receive.

The great end of all human endeavour is to share.

The great end of all human endeavour is to create.

The great end of all human endeavour is to destroy.

The great end of all human endeavour is to build.

The great end of all human endeavour is to tear down.

The great end of all human endeavour is to unite.

The great end of all human endeavour is to divide.

The great end of all human endeavour is to conquer.

The great end of all human endeavour is to submit.

The great tragedy of Science—the slaying of a beautiful hypothesis by an ugly fact.

Science is organized common sense.

I am too much of a skeptic to deny the possibility of anything.

Every man who has the slightest pretension to scientific knowledge knows that the mind of man is not capable of grasping the infinite.

The chess-board is the world; the pieces are the phenomena of the universe; the rules of the game are what we call the laws of Nature. The player on the other side is hidden from us.

The world is neither wise nor just; it is neither good nor bad; it is simply as it is.

If a little knowledge is dangerous, where is the man who has so much as to be out of danger?

Veracity is the heart of morality.

The improvement of our education is the only way to improve our morality.

Irrationality is the square root of all evil.