The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.

We need to be part of the solution, not part of the problem.

2004年9月13日，81岁的杨振宁在清华大学开始为本科生讲授普通物理。他说

Collaboration across sectors is the key to solving the world's most pressing environmental challenges.

I don’t follow rules. I follow my instincts.

成功来自于努力工作和奉献。

All I can do is be myself, whoever that is.

I don't want to be a star. I want to be an actor.