做出伟大工作的唯一途径是热爱你所做的事。

记忆是一条咬自己尾巴的狗。

We are to remember that we are not to take anything with us out of this world, and that it is how we have conducted ourselves here that will matter in the end.

幸福不是相信我们不需要改变；而是意识到我们可以改变。

好奇心推动数学家前进，总是在寻找下一个要回答的问题。