出自先秦《荀子·儒效》。对于所知道的东西就说知道，不知道的就说不知道；这样，对内是不欺骗自己的良心，对外是不欺骗他人。说明为人应当诚实的道理。

"The fundamental fact about all of us is that we're alive for a while but will die before long. This fact is the real root cause of all our anger and pain."

出自北齐·颜之推《颜氏家训·勉学》。没有把天下所有的书读个遍，就不要信口雌黄的发表观点。

Sustainability is not just a goal, it's a responsibility we owe to the future.

好与伟大之间的区别在于细节。