人比东西更需要修复、人们需要重头再来、恢复生机、改头换面并得到救赎；所以永远不要抛弃任何人。

The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.

The best research is driven by both curiosity and necessity.

在数学中，你不理解事物。你只是习惯了它们。