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。
I don't want to make things that are difficult for people. I want to make things that are easy.
I’m not afraid to be different.
We cannot choose the times, but we can choose how to respond to them.
继子女面临更大风险,因为进化压力塑造了父母更偏爱自己基因后代的心理。