最好的数学不仅严谨，而且优雅。

预测未来的最好方法就是发明未来。

最终，重要的是工作本身。不是名声或金钱。

When you're depressed, It always helps to lean your head on your arm. Arms like to feel useful.

Being brave isn’t the absence of fear. Being brave is having that fear but finding a way through it.

投资农民教育能带来最高的回报。

真相很少纯粹，也绝不简单。