All mankind... being all equal and independent, no one ought to harm another in his life, health, liberty or possessions.

And when his audience grew bored, he would spring into the air and do a back flip with a half twist.

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.

Program testing can be used to show the presence of bugs, but never to show their absence!

创新不仅仅是技术的问题；它关乎改变思维方式，为后代创造可持续的解决方案。