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Modern quarrying requires us to be geologists, ecologists, and community diplomats simultaneously.

可持續(xù)的世界始于可持續(xù)的選擇。

我們必須建立一個沒有經(jīng)濟支配、沒有剝削、沒有失業(yè)、沒有戰(zhàn)爭的世界。

Resilience is not a trait that people either have or do not have. It involves behaviors, thoughts and actions that can be learned and developed in anyone.

我不相信慈善。我相信團結(jié)。