Sustainability is not an add-on, it's a way of thinking.
【释义】上级不讲信用,就无法驱使下级;下级不讲信用,就无法侍奉上级,信用作为一种道德准则,意义十分重大。
In the desert, I had found a freedom unattainable in civilization.
Everything is possible, and nothing is given.