The real test of an algorithm is not just its correctness, but its scalability and robustness.

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.

真相并不总是美丽的，但追求真相总是美丽的。

智慧来自于经验的积累和对这些经验的反思。