The beauty of physics lies in its ability to explain the complex with simple principles.

The world is not run by thought, nor by imagination, but by opinion.

独裁统治滋生糟糕的文学，因为它们滋生恐惧和顺从。

不存在能力、天赋、气质、心理素质和特征的遗传。

自由是心灵的状态，获取它的最好方式是培育它。