If you can't mine it safely, you shouldn't mine it at all.
如果你不能安全地开采它，你根本不应该开采它。
The only way to learn mathematics is to do mathematics.
Philosophy is a battle against the bewitchment of our intelligence by means of language.
预测未来的最好方式就是去创造未来。
La palabra es el instrumento más poderoso que tenemos para cambiar el mundo.
Every mark on the paper is a political act.
质量从来不是偶然的，它始终是智慧努力的结果。
真相总是比小说更离奇。