The truth is rarely pure and never simple.
真相很少是纯粹的，也从来不是简单的。
It was like when you make a move in chess and just as you take your finger off the piece, you see the mistake you’ve made, and there’s this panic because you don’t know yet the scale of disaster you’ve left yourself open to.
礼义廉耻，可以用来要求自己，不可用来要求别人。要求自己则能少犯过失，要求别人则难以与人和睦相处，难以与他人相处就不合乎处世之道。所以君子只严格要求自己，小人则对别人求全责备。
保持开放的心态，接受不同的意见。
Cryptography is about communication in the presence of adversaries.
The rocks we quarry today are the heritage we leave for tomorrow.