【释义】不符合礼仪的礼节，不顾和道义的行为，君子是不会做的。
If you're not failing every now and then, you're not doing anything very innovative.
The choices we make each day—what we buy, what we eat, how we live—all have an impact.
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 always try to stay calm under pressure.