我打球不是为了被记住，而是为了激励他人。

学习数学的唯一方法就是做数学。

You have to be willing to fail to be successful.

Everyone seems very lonely, with their own way to find ways to escape loneliness; actually they still continue their own loneliness.

To teach how to live without certainty and yet without being paralyzed by hesitation is perhaps the chief thing that philosophy， in our age， can do for those who study it.

盈利和环境责任并不相互排斥，如果做得对，它们是相辅相成的。