The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons will again produce fission.

To define is to limit.

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

烘焙的成功是科学、艺术和激情的结合。

故事的真实性在于它所隐藏的，而非它所揭示的。