The key to security is not to trust anyone, including yourself.

可持续性不是一种趋势，而是生存的必需。

我们开采的每一吨煤炭都必须以最小的环境影响创造最大的价值。

除非将某人的行动置于其整个生活背景中看待，否则无法完全理解其行动。

我学会了如何生活……如何在这个世界上生活，而不仅仅是站在一旁观看。

The individual is reduced to a negligible quantity, perhaps less in his consciousness than in his habits and in the unconscious adjustments of his life.