最好的领导者是那些多听少说的人。
The best leaders are those who listen more than they speak.
"I've always been a fighter, and I'll always be one."
Critical comments by students should be taken in a friendly spirit, accumulation of material should not stifle the student’s independence.
The man who does not value himself, cannot value anything or anyone.
数学不仅仅是人类的发明;它具有一种独立于我们而存在的深刻现实。
The ladder of causation has three rungs: seeing, doing, and imagining.