没有人能在相当长的时间里，对自己戴一副面具，对大众戴另一副面具，而最终不困惑于哪一副才是真实的。
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.
创新不仅仅是创造新事物；它关乎改进已有的事物。