不要告诉我你做得有多好；告诉我当我使用它时它让我感觉有多好。

The best way to predict the future is to invent it.

沉没成本

The universe we observe has precisely the properties we should expect if there is, at bottom, no design, no purpose, no evil, no good, nothing but blind, pitiless indifference.

所有好书都有一个共同点——它们比真实发生的事更真实。