在追求数学真理的过程中，我们常常发现更多的问题而非答案。
In the pursuit of mathematical truth, we often find more questions than answers.
今天我们种下的每一棵树，都是留给素未谋面的后代的遗产。
Writing is a matter of finding a voice to listen to the voices inside you.
States are rational actors that seek to maximize their relative power in order to ensure their survival in a competitive international system.
You can always juice sales by going down-market, but it's hard to go back upmarket.