Your most unhappy customers are your greatest source of learning.

Action is the foundational key to all success.

You can't just ask customers what they want and then try to give that to them. By the time you get it built, they'll want something new.

You can observe a lot just by watching.

Just because something doesn't do what you planned it to do doesn't mean it's useless.

The whole secret of a successful life is to find out what is one's destiny to do, and then do it.

Talent is cheaper than table salt. What separates the talented individual from the successful one is a lot of hard work.

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

You gain strength, courage and confidence by every experience in which you really stop to look fear in the face.... You must do the thing you think you cannot do.

Great companies are built on great products.

Either you run the day or the day runs you.

Success is the doing, not the getting; in the trying, not the triumph. Success is a personal standard, reaching for the highest that is in us, becoming all that we can be. If we do our best, we are a success.

Any fact facing us is not as important as our attitude toward it, for that determines our success or failure

To copy others is necessary, but to copy oneself is pathetic

I never did a day's work in my life. It was all fun.

It's a terrible thing to look over your shoulder when you are trying to lead - and find no one there

What I cannot create, I do not understand.

If you're bored with life, if you don't get up every morning with a burning desire to do things, you don't have enough goals.

Speak softly and carry a big stick; you will go far.

Nothing will work unless you do.

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.