Nothing can ever be a rule in drama, because then you're saying certain things won't ever happen, and that would be very boring.

Nothing can ever be a rule in drama, because then you're saying certain things won't ever happen, and that would be very boring.

没有什么可以成为戏剧的规则，因为那样你就在说某些事情永远不会发生，那将是非常无聊的。

-- Steven Moffat 史蒂文·莫法特