出自《海国图志·卷首》。地气和天时变化了，那么历史的体例也应随着时代的变化而变化。

The only way to learn mathematics is to do mathematics.

法律的合法性取决于其在包括所有公民在内的民主进程中的产生。

当你受到攻击时，狠狠地反击。

Sustainable fishing isn't an option—it's the only path forward if we want our industry to survive.

The task of a diplomat is to pursue the maximum interests for their country while avoiding unnecessary conflicts and frictions.