Progress means not just changing, but changing for the better. If no set of moral ideas were truer or better than any other, there would be no sense in preferring civilized morality to savage morality, or Christian morality to Nazi morality.
"We all want progress. But progress means getting nearer to the place where you want to be. And if you have taken a wrong turning, then to go forward does not get you any nearer. If you are on the wrong road, progress means an about-turn and walking back to the right road; and in that case the man who turns back soonest is the most progressive man. "
— C.S. Lewis (Mere Christianity)
