剑鞘保护剑的锋利，自己却满足於它自己的迟钝。

Make women rational creatures, and free citizens, and they will quickly become good wives, and mothers; that is, if men do not neglect the duties of husbands and fathers.

It is not the creation of wealth that is wrong, but the love of money for its own sake.

写下那些不该被遗忘的事。

当没有人相信你时，你必须相信自己。

"The best ideas come from the intersection of diverse perspectives."

States are rational actors that seek to maximize their power and security in an anarchic international system.