A little sincerity is a dangerous thing, and a great deal of it is absolutely fatal.
不够真诚是危险的，太真诚则绝对是致命的。
Be the change you wish to see in the world.
数学中发现的快乐是无与伦比的。
The only thing that really matters is the relationships that we have.
I don't compete with anyone but myself. My goal is to be better than I was yesterday.
记忆是个狡猾的东西，它既可以是祝福也可以是诅咒。
In the depth of the valley is the road to salvation.