The best hedge against low oil prices is low breakeven costs.

采矿业有责任让社区比我们发现时更好。

Sustainable quarrying means listening to the land as intently as we listen to shareholders.

写作的行为是一种生存的行为。

你不需要是天才或远见者，甚至不需要大学毕业生才能成功。你只需要一个框架和一个梦想。