We begin with the hypothesis that any subject can be taught effectively in some intellectually honest form to any child at any stage of development.

有时候，只要你坚持下去，活下去，就已经是非凡的成就了。

攀上一座高山后，你才会发现，原来还有更多的山头等着你

释义：物质炫耀的本质是精神空洞的呼救。