My personal favorite affirms skepticism, faith, and imagination all at once. From "The Silver Chair" by CS Lewis:
"Suppose we have only dreamed, or made up, all those things- trees and grass and sun and moon and even Aslan himself. Suppose we have. Then all I can say is that, in that case, the made-up things seem a good deal more important than the real ones. Suppose this black pit of a kingdom of yours is the only real world. Well, it strikes me as a pretty poor one. And it's a funny thing, when you come to think of it. We're just babies making up a game, if you're right. But four babies playing a game can make a play-world that licks your real world hollow. That's why I'm going to stand by the play-world. I'm on Aslan's side even if there isn't any Aslan to lead it. I'm going to live as like a Narnian as I can even if there isn't any Narnia.... Not that our lives will be very long, but that's small loss if the world's as dull a place as you say."