生命的意义就是意义本身。
A person may cause evil to others not only by his actions but by his inaction, and in either case, he is justly accountable to them for the injury.
食物的真正成本不仅是你商店里支付的,更是地球长期付出的代价。
衡量森林价值的真正标准不是木材的板英尺数,而是几个世纪的生态平衡。