Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
历史既没有地球的古老,也没有孩子的纯真;它始终是人类激情与错误的产物。
We must balance economic growth with environmental protection to ensure a better future.
没有什么比多数人容易被少数人统治更令人惊讶的了。
质量是我们产品的生命线,我们绝不能在这方面妥协。
The best way to learn is by doing, not just by listening or reading.