The true genius shudders at incompleteness — and usually prefers silence to saying something which is not everything it ought to be.

Growth comes from taking calculated risks, not from playing it safe.

You know, in the Middle Ages, in England, when you met a very poor person, that person would be described as an "unfortunate" -- literally, somebody who had not been blessed by fortune, an unfortunate.

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

Never stop innovating, never stop improving.

The real is always more than we can say.