Nature is the best teacher; it has already done the experiments, we just have to interpret them.

我们生产的每一件塑料制品都应该有明确的再利用或回收路径。

"Books are like a mirror. If an ass looks in, you can't expect an angel to look out."

"True loyalty is not blind; it sees the flaws but chooses to stay."

种一棵树最好的时间是20年前，第二好的时间是现在。

学校是一个在分化社会中具有将集体文化遗产转化为个体无意识习性的功能的机构。