Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
La palabra es el arma más poderosa que tiene el ser humano.
If you're not willing to take risks, you're not going to grow.
我们使用的词语就像我们穿的衣服。它们可以让我们看起来聪明或愚蠢,善良或残忍,坚强或软弱。