A financial crisis is often a self-fulfilling prophecy driven by panic.
The process of doing mathematics is more important than the result.
系统有子系统,子系统有子系统,等等,这是无限的,这就是为什么我们总是从头开始。
金钱像幽灵一样横亘在我们之间,我无法触摸她的手而不感到那种寒意。
生活就像一首歌,有高潮也有低谷,但每一段都是珍贵的。