过去从未消逝，它甚至还未过去。

背叛的那一刻是最糟糕的，当你毫无疑问地知道你被背叛的那一刻：另一个人对你怀有那么多的恶意。

If you're not stubborn， you'll give up on experiments too soon. And if you're not flexible， you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.

We have the choice to use the gift of our life to make the world a better place—or not to bother.

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。