可持续性不是一种选择，而是必须——如果我们想在养活不断增长的人口的同时不破坏地球的话。
Sustainability isn't an option—it's a necessity if we want to feed a growing population without destroying our planet.
Security is always excessive until it's not enough.
Sometimes, the smallest step in the right direction ends up being the biggest step of your life.
生活是世界上最为罕见的事情。大多数人只是存在，仅此而已。
一本好书是一个永远不会让你失望的朋友。