If you're not failing occasionally, you're not pushing boundaries hard enough.

预测未来的最好方法就是创造它。

To live is to endure.

The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt; and the profoundest wisdom, to know when it ought to be resisted, and when to be obeyed.

理解计算的极限与理解数学的极限同样重要。

战争不会在战斗停止时结束；它的回响会延续几代人。