As man is, God once was. As God is, man may become. Lewis certainly didn't teach the first of these. But some present-day Mormon apologists are suggesting that Lewis accept the second half of this infamous couplet. This essay, by Gretchen Passantino, shows that this is simply ridiculous. We're creatures of God forever according to Lewis, not God's equal. To think otherwise is to quote selectively in a way that is patently dishonest.
HT: Jeff Downs