种一棵树最好的时间是20年前，其次是现在。

I try to write books that are both entertaining and thought-provoking.

To feed the world, we must first respect the natural cycles that make farming possible.

When you say 'yes' to others, make sure you are not saying 'no' to yourself.

One who never turned his back but marched breast forward, never doubted clouds would break.

The best investments are those that power both economies and ecosystems.