Your most unhappy customers are your greatest source of learning.

Genius is eternal patience.

If you are not willing to risk the unusual, you will have to settle for the ordinary.

I've always found the second book in a series is the hardest to write.

I'm not the smartest fellow in the world, but I can sure pick smart colleagues.

You've got to be very careful if you don't know where you're going, because you might not get there.

The world does not pay men for that which they 'know'. It pays them for what they do, or induce others to do.

Without work, all life goes rotten, but when work is soulless, life stifles and dies.

You don't have to be great to start, but you have to start to be great

I'm a greater believer in luck, and I find the harder I work the more I have of it

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

If you go to work on your goals, your goals will go to work on you. If you go to work on your plan, your plan will go to work on you. Whatever good things we build end up building us.

No business which depends for existence on paying less than living wages to its workers has any right to continue in this country

Find out what you really love to do, and then find a way to make a good living doing it.

The role of the artist is to ask questions, not answer them.

If you do not change direction, you may end up where you are heading.

The way to screw up somebody's life is to give them what they want.

Once you start a working on something, don't be afraid of failure and don't abandon it. People who work sincerely are the happiest.

A creative man is motivated by the desire to achieve, not by the desire to beat others.

Do one thing at a time, and while doing it put your whole soul into it to the exclusion of all else.

Be interesting, be enthusiastic... and don't talk too much.