The goal of mathematics is not to solve problems, but to understand them.

The future of liberal democracy depends on its ability to adapt to new challenges and to maintain the support of its citizens.

历史不仅仅是事实——它是人类的心跳。

世界是一面镜子，它映照出我们的丑陋。

解释：人的命运是天注定的，人不能去改变。