真正的理解来自于把握问题的内在结构关系

史记

Your self-worth is determined by you. You don’t have to depend on someone telling you who you are.

The best businesses solve real problems.

金钱的损失是所有损失中最小的，但信心的损失是最大的。

网络是我们用来创造一个更平等社会的最有力工具。

We must measure success not just in barrels produced, but in emissions avoided.

以孩子们能理解的方式写一些困难的主题是很重要的。