煤炭建设了这个国家，煤炭也将保持它的强大。

Everyone is a genius. But if you judge a fish by its ability to climb a tree, it will spend its whole life believing it is stupid.

最好的科学是用头脑和心灵完成的。

导师的职责是指导孩子的智能活动和孩子的心理。