The past is a mirror in which we see ourselves reflected.

The biggest risk is not taking risks.

作家的任务就是把主角逼上绝路，然后向他扔石头。

The poor don’t fail to save because they don’t want to—they can’t.

The idea that we will make a society where literally everybody is graded, the good at the top, bad at the bottom, exactly done as it should be, is impossible. There are simply too many random factors: accidents, accidents of birth, accidents of things dropping on people's heads, illnesses, etc. We will never get to grade them, never get to grade people as they should.

探索材料的拓扑特性不仅仅是理解它们当前的属性，还包括预测和设计新的功能。