Education is not a preparation for life; Education is life itself.
Anyone who has begun to think places some portion of the world in jeopardy.
Every great advance in science has issued from a new audacity of the imagination.
Failure is instructive. The person who really thinks learns quite as much from his failures as from his successes.
The end justifies the means only when the means used are such as actually bring about the desired and desirable end.