The most sustainable product is the one that already exists.
Quality is not a label; it is a standard.
敢于求知!要有勇气运用你自己的理智。
你不会因为正常而成为明星。
To be a good mathematician, you need to have both intuition and rigor.
战争是迫使敌人服从我们意志的暴力行为。