Keep learning. It's the only way to stay relevant in a fast-changing world.
The most exciting moments in mathematics are when you see connections between things that seemed unrelated before.
我们所知道的很少,我们所不知道的却是无限的。
最有效的发展干预措施往往是最简单的。
翻译:事物的增减盈亏,都是随时间的变化而变化的。