理论是灰色的，而生活之树常青。

我是一个不断进步的作品。

当今世界面临的最重要挑战是在发展中国家建立强大、有效且负责任的国家。

Sometimes the thing you're most afraid of doing is the very thing that will set you free.

Feelings are guides to action.

He who wants to do good knocks at the gate； he who loves finds the gate open。

追求幸福并不自私——它对于有意义的生活至关重要。