Our descendants will achieve thins that will amaze us, yet a portion of what they will create could have been made with today’s materials and tools if we had had the imagination. Think bigger.

过去是我们讲给自己的故事。

当我们无法谈论某件事时，它就变得危险。

对我们星球最大的威胁是相信别人会拯救它。