所有人类行为都有以下七个原因中的一个或多个：机会、自然、强迫、习惯、理性、激情和欲望。
故事的力量在于它能够激发改变。
You should never give up on your dreams.
The best solutions often come from listening—to nature, to science, and to the people on the ground.
最好的解决方案往往来自于倾听——倾听自然、倾听科学、倾听实地工作者。
The man with a toothache thinks everyone happy whose teeth are sound. The poverty-stricken man makes the same mistake about the rich.