The greatest mistake you can make in life is to be continually fearing you will make one.
It is the duty of the inventor to make his work as useful and as accessible as possible to the public.
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。
在物理学中，我们经常发现最美丽的解决方案来自于最混乱的问题。