There is but one dependable method of accumulating and legally holding riches, and that is by rendering useful service.

Tell the audience what you're going to say, say it; then tell them what you've said.

If youre in the luckiest one per cent of humanity, you owe it to the rest of humanity to think about the other 99 per cent.

When you play, play hard; when you work, don't play at all.

Riches do not respond to wishes. They respond only to definite plans, backed by definite desires, through constant persistence.

He who thinks little errs much

Let others lead small lives, but not you. Let others argue over small things, but not you. Let others cry over small hurts, but not you. Let others leave their future in someone else's hands, but not you.

Workers of the world unite; you have nothing to lose but your chains.

By failing to prepare, you are preparing to fail.

A good objective of leadership is to help those who are doing poorly to do well and to help those who are doing well to do even better.

The painter has the Universe in his mind and hands.

Personally, I enjoy working about 18 hours a day. Besides the short catnaps I take each day, I average about four to five hours of sleep per night.

Success is a lousy teacher. It seduces smart people into thinking they can't lose.

The secret of success is constancy to purpose.

To invent, you need a good imagination and a pile of junk.

Whosoever desires constant success must change his conduct with the times.

I don't like that man. I must get to know him better.

Kill my boss? Do I dare live out the American dream?

Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.

Only you can control your future.

If you try to be anyone but yourself, you will fail; if you are not true to your own heart, you will fail. Then again, there's no success like failure