基本规范是预设的终极规则，根据这一规则，该秩序中的规范得以建立和废除，获得和失去其有效性。
The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.
最终，我们记住的不是敌人的话语，而是朋友的沉默。
Whatever you're meant to do, do it now. The conditions are always impossible.
The future of mining lies in balancing profitability with environmental responsibility.