数学不仅仅是关于数字、方程、计算或算法:它是关于理解的。
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
我不是天后,我是工作者。
The best performance improvement is the transition from the nonworking state to the working state.
没有可持续性的利润是短期的收益,却带来长期的痛苦。