I met the towering intellectuals in books, not in classroom, which is natural.My family was into all that stuff, getting ahead through discipline, knowledge, and self-control.

我从未认识过任何人是他们看起来的样子；或者至少，只是他们看起来的样子。

制造链式反应机器的基本点当然是确保每次裂变产生一定数量的中子，其中一些中子再次有效地产生裂变。