不要被竞争驱动，而是被愿景驱动。

Chance is a word void of sense; nothing can exist without a cause.

The difference between a policy and a crusade is that a policy is judged by its results, while a crusade is judged by how good it makes its crusaders feel.

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