简单可以是最强大的东西。
我认为我和吉姆值得称赞的主要原因是...选择了正确的问题并坚持研究它。
Greatness is not about being the best, it's about being better than you were yesterday.
我们时代的挑战是建立一个为所有人服务的经济,而不仅仅是少数特权阶层。