Addendum to Meme-oires 09

[jamesq]

There are things we believe in that only exist because we believe in them, but they're not supernatural.

Death: Humans need fantasy to be human... you have to start out learning to believe the little lies.
Susan: So we can believe the big ones?
Death: Yes, Justice, mercy, duty. That sort of thing... you need to believe in things that aren’t true. How else can they become?

From Terry Pratchett, natch.