子曰：“君子求诸己，小人求诸人。”
孔子说：“君子求自己，小人求别人。”
Don’t fear failure. — Not failure, but low aim, is the crime. In great attempts it is glorious even to fail.
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。
The lesson of quantum mechanics is that we must revise our classical notions of reality.