Kindness is the most beautiful language.

The only thing that’s really important is the work.

But there is only one thing which gathers people into seditious commotion, and that is oppression.

如果不是现在，那是什么时候？如果不是我，那会是谁？

Technology must serve society, not the other way around.

数学中发现的快乐是无与伦比的。