I'm on Aslan's Side, Even if There Isn't Any Aslan...

Another Narnian gem (this time from The Silver Chair) is Puddleglum hurling defiance at the Green Witch after helping to deliver Prince Rilian from his long enchantment. The character of Lewis's beloved marshwiggle was based on his gardener Fred Paxford, but his inspired stand for Aslan ("even if there isn't any Aslan") may owe much more to MacDonald. In Thomas Wingfold, Curate, the hero outfaces futility with an eloquence very similar to Puddleglum's, and it is easy to imagine Lewis writing the following speech with part one of the Wingfold trilogy firmly fixed in his mind.

All you’ve been saying is quite right, I shouldn’t wonder. I’m a chap who always liked to know the worst and then put the best face I can on it. So I won’t deny any of what you said. But there’s one thing more to be said, even so. Suppose we have only dreamed, or made up, all those things—trees and grass and sun and moon and stars and Aslan himself. Supose 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 world. Well, it strikes me as a pretty poor one. And that’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 which 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. So, thanking you kindly for our supper, if these two gentlemen and the young lady are ready, we’re leaving your court at once and setting out in the dark to spend our lives looking for Overland.

— The Silver Chair, Chapter 12, The Queen of Underland
Even if there be no hereafter, I would live my time believing in a grand thing that ought to be true if it is not. And if these be not truths, then is the loftiest part of our nature a waste. Let me hold by the better than the actual, and fall into nothingness off the same precipice with Jesus and Paul and a thousand more, who were lovely in their lives, and with their death make even the nothingness into which they have passed like the garden of the Lord. I will go further, and say I would rather die forevermore believing as Jesus believed, than live forevermore believing as those that deny Him.

— Thomas Wingfold, Curate, Chapter LXXV, An Examination