Don't give up on your dreams because of difficulties.

The greatest threat to our forests isn't logging—it's indifference.

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

Education does not take root in the soul unless it goes deep.

我不是潮流，我是偶像。

我热爱我所做的事，当你热爱你所做的事时，你一生中就不必工作一天。