一个理论的优雅不仅在于其数学表述，还在于其在一个统一框架下连接不同现象的能力。

治理国家大事的人，不会去顾及生活小事；要想成就大的功业，不要去纠缠小的利益。点评：俗话说「成大事者，不拘小节。」要想成就大的事业，就不要在生活的细枝末节上计较。

可持续性必须有利可图，否则它就无法持续。

我不害怕为我的信仰挺身而出。

He allowed himself to be swayed by his conviction that human beings are not born once and for all on the day their mothers give birth to them, but that life obliges them over and over again to give birth to themselves.

The capacity to be alone is the capacity to love. It may look paradoxical to you, but it's not.