All water has a perfect memory and is forever trying to get back to where it was.
Sometimes it's better to take a step back and focus on your mental health.
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。
History has neither the venerable age of the earth nor the innocence of the child; it is always the result of human passions and human errors.
我是那种人，如果你问我一个问题而我不知道答案，我会告诉你我不知道。但我敢打赌，我知道如何找到答案，而且我会找到答案。
如果你不喜欢别人假装热爱的东西，不要觉得自己愚蠢。