可持续性不仅仅是植树；它是为了正确的理由在正确的地方种植正确的树木。

亲眼目睹世道的变化趋向，才知道国家治乱的关键必定在于人心的向背和风俗的好坏。

If you're trying to achieve, there will be roadblocks. I've had them; everybody has had them. But obstacles don't have to stop you. If you run into a wall, don't turn around and give up. Figure out how to climb it, go through it, or work around it.

要理解疯狂，必须先说它的语言。

科学是微分方程式，而宗教是边界条件。