科学家研究自然并非因为它有用；他研究它是因为他从中获得乐趣，而他从中获得乐趣是因为它是美丽的。

States are rational actors, and they will always act in their own self-interest.

I try to approach each character with an open mind and a willingness to learn.

The known is finite, the unknown infinite; intellectually we stand on an islet in the midst of an illimitable ocean of inexplicability.