We must listen to the land - it tells us what it needs if we're willing to hear.

If a Nation expects to be ignorant and free in a state of civilization,it expects what never was and never will be....If we are to guard against ignorance and remain free,it is the responsibility of every American to be informed."

语言是人类拥有的最强大的武器。

Each generation takes the earth as trustees.

预测未来的最好方法就是创造未来。