不要害怕犯错，但要快速从中学习。

For me they normally happen, these career crises, often, actually, on a Sunday evening, just as the sun is starting to set, and the gap between my hopes for myself and the reality of my life starts to diverge so painfully that I normally end up weeping into a pillow.

只有在非常害怕失去的一样东西的时候一个人才会说谎。《纯真博物馆》

在经济学中，规则的小变化可能导致结果的大变化。