Don't criticize what you can't understand.
不要批评你不理解的东西。
I want my books to be a mirror, not a window.
The only way to achieve the impossible is to believe it is possible.
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。
Control of consciousness determines the quality of life.