过去是一个无处不在的阴影。

It has done me good, because of the color of the wheat fields. Go and look again at the roses. You will understand now that yours is unique in all the world。

We are all afraid—for our confidence, for the future, for the world.

气候变化是农业面临的最大挑战，但也是其重塑的最大机遇。