The reward of seeing the joy on the faces of the parents is immense.

I think that the thing that makes mathematics worthwhile is the fact that it has this incredible structure that you can explore and discover.

Sometimes life hits you in the head with a brick.Don’t lose faith.

The only limits you have are the ones you set for yourself.

我相信努力、纪律和尊重。

Your most unhappy customers are your greatest source of learning.

诗人的职责是将那些我们共有的、如此深刻、如此重要却又难以名状的情感诉诸文字。