First, as to putting the clock back. Would you think I was joking if I said that you can put a clock back, and that if the clock is wrong it is often a very sensible thing to do? But I would rather get away from the whole idea of clocks. 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 doing 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….And I think if you look at the present state of the world, it is pretty plain that humanity has been making some big mistakes. We are on the wrong road. And if that is so, we must go back. Going back is the quickest way on.
C.S. Lewis quoted in Alan Jacobs, The Year of Our Lord, 1943, 34-35.