教育所要求的只有一项：通过孩子的内在力量来达到自我的学习。

煤矿工人是美国工业实力的无名英雄。

In every person, there is an abyss. Sometimes you look into it, and sometimes you don’t.

I have so much admiration for women who are married, have kids, and work full time. I don't know how you do it. I don't think I could.

闭上眼睛去看。

The present state of the system of nature is evidently a consequence of what it was in the preceding moment, and if we conceive of an intelligence which at a given instant comprehends all the relations of the entities of this universe, it could state the respective positions, motions, and general effects of all these entities at any time in the past or future.