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 never allow myself to have an opinion on anything that I don’t know the other side’s argument better than they do.
未来能源结构将是多元化的,煤炭行业需要找准自己的定位。