"The colony is the place where the project of a new humanity is to be tested, where the dream of a world without borders is to be realized, where the dream of a world without races is to be realized, where the dream of a world without nations is to be realized, where the dream of a world without classes is to be realized."

数学证明的美在于它的优雅以及它以清晰简洁的方式揭示潜在真理的方式。

Sustainability isn't a buzzword; it's the only way forward for mining.