Leadership isn't about giving orders; it's about inspiring people to see the bigger picture.

Lock up your libraries if you like; but there is no gate, no lock, no bolt that you can set upon the freedom of my mind.

The best way to learn mathematics is to do mathematics.

“小河都知道这个道理：别着急，我们总有一天会到那里的。”

当你怀疑自己是否能飞的那一刻，你就永远失去了飞翔的能力。