创新不仅仅是技术问题；它关乎改变思维方式并接受新的思考方法。

No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.

玩耍是童年的语言，书籍也应该用这种语言表达。

穷人不是不想储蓄，而是没有能力储蓄。