过去从未消亡，它甚至从未过去。
The past is never dead. It's not even past.
That which does not kill us makes us stronger.
Writing is a way of resisting forgetting.
时间是你的朋友。冲动是你的敌人。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法的：它是关于理解的。