The past is always tense, the future perfect.

Change starts with a decision, but it's sustained by action.

The key to managing complexity is to focus on the interfaces between components, not their implementations.

Civilization is a stream with banks. The stream is sometimes filled with blood from people killing, stealing, shouting and doing the things historians usually record, while on the banks, unnoticed, people build homes, make love, raise children, sing songs, write poetry and even whittle statues. The story of civilization is the story of what happened on the banks.

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

I don't compete with others. I compete with myself.