Further to “Misquoting CS Lewis to make him sound more like he is in Darwin’s camp”:
From Chapter XV of The Screwtape Letters, we incidentally learn Lewis’s actual view of those kinds of gassy theistic evolution (Christian Darwinism) movements that never just go away, because some people are incapable of learning what Darwinism actually is, no matter what. Here, a senior devil explains to a junior how to ruin a man’s soul:
Our business is to get them away from the eternal, and from the Present. With this in view, we sometimes tempt a human (say a widow or a scholar) to live in the Past. But this is of limited value, for they have some real knowledge of the past and it has a determinate nature and, to that extent, resembles eternity . . . It is far better to make them live in the Future.
Biological necessity makes all their passions point in that direction already, so that thought about the Future inflames hope and fear. Also, it is unknown to them, so that in making them think about it we make them think of unrealities. In a word, the Future is, of all things, the thing least like eternity. It is the most completely temporal part of time – for the Past is frozen and no longer flows, and the Present is all lit up with eternal rays. Hence the encouragement we have given to all those schemes of thought such as Creative Evolution, Scientific Humanism, or Communism, which fix men’s affections on the Future, on the very core of temporality. Hence nearly all vices are rooted in the future. Gratitude looks to the past and love to the present; fear, avarice, lust, and ambition look ahead. Do not think lust an exception.
When the present pleasure arrives, the sin (which alone interests us) is already over. The pleasure is just the part of the process which we regret and would exclude if we could do so without losing the sin; it is the part contributed by the Enemy, and therefore experienced in a Present. The sin, which is our contribution, looked forward.
Note redline above.