History isn't what happened. History is just what historians tell us.
历史不是发生了什么。历史只是历史学家告诉我们的东西。
学习不是一个被动的过程;它涉及知识的主动构建。
"Humor is the great thing, the saving thing. The minute it crops up, all our irritations and resentments slip away and a sunny spirit takes their place."
种下一棵树的人,种下了希望。
The most sustainable forest is one that's valued by the community that depends on it.