数学的快乐来自于为理解而奋斗。
The only person you should try to be better than is the person you were yesterday.
领导力是激励他人相信比他们自己更伟大的东西。
一切事物都完备地存在于我心中。反观自身而达到真诚,快乐没有比这更大的了。
The only thing I can control is my effort and my attitude.