The function of a system of hypotheses is to warn us beforehand what will be our experience—to enable us to make accurate predictions.
假设体系的功能在于预先警示我们将有何种体验——使我们能够做出准确预测。
Don’t be afraid to ask a question that may sound stupid because 99% of the time everyone else is thinking of the same question and is too embarrassed to ask it.
相信有时是痛苦的。但如果停止相信，什么都不会开始。
建筑师必须是诗人、建造者和革命者。
一个问题如果在计算机上可以快速解决，那么它属于P类问题；如果一个解可以快速验证，那么它属于NP类问题。