幸福不是没有痛苦，而是有能力克服它。

In times of crisis, true leaders emerge by staying calm, focused and decisive.

永远在学习。世界在不断变化，你需要跟上。

I like the stars. It's the illusion of permanence, I think. I mean, they're always flaring up and caving in and going out. But from here, I can pretend...I can pretend that things last. I can pretend that lives last longer than moments. Gods come, and gods go. Mortals flicker and flash and fade. Worlds don't last; and stars and galaxies are transient, fleeting things that twinkle like fireflies and vanish into cold and dust. But I can pretend.

——〈临时大总统誓词〉，1912年1月1日

市场的变化永远比计划快，企业要有快速应变的能力。

宏观经济学的核心问题是理解人们如何随时间做出决策。