To lose one parent may be regarded as a misfortune; to lose both looks like carelessness.
最好的程序是既能被计算机快速执行，又能被人类清晰理解的程序。
2000年：贝索斯致股东信《即使在最残酷的时期，也将努力把公司打造更具“重量”》
Investors should avoid market timing and stock picking.
