Man is not sum of what he has already, but rather the sum of what he does not yet have, of what he could have.

Do not wait for anybody or anything. Do whatever you can. Build your hope on none.

Learn everything that is good from others, but bring it in, and in your own way absorb it; do not become others.

We don't grow older, we grow riper.

“Be slow of tongue and quick of eye.”

“The elevator to success is out of order. You’ll have to use the stairs . . . one step at a time.”

Genius is one percent inspiration and ninety-nine percent perspiration.