教学只是教育的脚手架;真正的建筑是由孩子自己完成的。
I don’t let anyone else’s opinion define my worth.
In all of us,even in good men,there is a lawless wild-beast nature,which peers out in sleep.
The most valuable resource in agriculture isn't land or water—it's knowledge.
在气候变化问题上,我们必须成为解决方案的一部分。