要想打败对手，就成为他们的朋友。
To combat an adversary， become their friend.
The only way to do great work is to love what you do.
The most dangerous thing is to do nothing.
Insanity is repeating the same mistakes and expecting different results.
当你愿意挑战现状时，创新就会发生。
强调历史研究既要理解历史背景，又要保持学术批判性。