Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
我们养殖的每个物种都教会我们关于海洋生态系统的新知识。
食品安全是企业的生命线,任何时候都不能放松。
The best weapon of a dictatorship is secrecy, but the best weapon of a democracy should be the weapon of openness.
最伟大的胜利来自最艰难的战斗。