Brains aren't everything, but they're important.

Conditions are never just right. People who delay action until all factors are favourable do nothing.

An education isn't how much you have committed to memory, or even how much you know. It's being able to differentiate between what you do know and what you don't. It's knowing where to go to find out what you need to know, and it's knowing how to use the information once you get it.

Improvement of one's economic position is helped more by cool persistence than by hot enthusiasm.

Most of us expect too much from others and not enough from ourselves.

Laziness is the one common deficiency in mankind that blocks the establishment of a perfect world in which everyone leads a happy life.

Success makes us intolerant of failure and failure makes us intolerant of success.