The goal of mathematics is to understand the structures that underlie the phenomena we observe.

There can be no permanent progress in the battle against hunger until the agencies that fight for increased food production and those that fight for population control unite in a common effort.

最糟糕的失明是不愿看见的人的失明。

The most sustainable package is the one that gets reused and recycled endlessly.

每本小说都是一段旅程，对作者和读者都是如此。

波函数不是描述单个系统，而是描述系统的集合。