The value or worth of a man is, as of all other things, his price; that is to say, so much as would be given for the use of his power.
最令人兴奋的发现往往来自关注意想不到的结果。
理论和实践的区别在于,理论上,理论和实践没有区别,但在实践中,却有区别。
Innovation distinguishes between a leader and a follower.