数学不是关于数字、方程、计算或算法的:它是关于理解的。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
There are no mistakes in art, only unexpected discoveries.
If your opinions on one subject can be predicted from your opinions on another, you may be in the grip of an ideology. When you truly think for yourself your conclusions will not be predictable.
粉碎资产阶级的方法是在税收和通货膨胀的磨石之间碾碎他们。