The beauty of mathematics lies in its ability to describe the universe in the most abstract terms.

大女孩需要大钻石。

The human mind is so complex and things are so tangled up with each other that, to explain a blade of grass, one would have to make a diagram of the universe.

教室是更大社会的缩影，因此，它是关于意义、身份和权力的斗争场所。

解释：人有知识，犹如树木有枝叶，树木有了枝叶，能带给人阴凉，人有了知识，就可以为人民做更多的事。