每一片森林都始于一颗种子,就像每一个伟大的事业。
Every forest began with a single seed, just like every great enterprise.
宏观经济学的核心问题是理解人们如何随时间做出决策。
理解宇宙的努力是为数不多的能将人类生活提升至闹剧水平之上,并赋予其悲剧优雅的事情之一。
The power of mathematics lies in its ability to simplify the complex.