Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
预测未来的最好方法就是创造未来。
热爱传统从来没有削弱过一个国家.传统就是生死时刻用来救命的.
不要只是梦想远大,要行动远大。
Every piece of plastic ever made still exists somewhere on this planet—that's both our challenge and our responsibility.