未来取决于你现在做什么。
The capacity to be puzzled is the premise of all creation, be it in art or in science.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
所以,储备是国家最重要的事;粮食是国家的宝物;武器是国家的利爪;城池是守卫国家的屏障。