The true cost of coal must account for both its immediate value and its long-term impact on communities and ecosystems.

没人会和你自己一样对你所拥有的东西印象深刻。（Morgan Housel《金钱心理学》里面的一句话，可以理解为禀赋效应：即，由于情感上的偏见，人们在自己已经拥有的东西上比尚未获得的东西拥有更大的价值）

History has neither the desire nor the capacity to make men better or worse; it merely records what they have been and what they have done.

让孩子留在家里最好的方法是让家庭氛围愉快——并且把轮胎的气放掉。

Necessity knows no law.