No one returns from Christianity to the same state he was before Christianity but into a worse state: the difference between a pagan and an apostate is the difference between an unmarried woman and an adulteress. For faith perfects nature but faith lost corrupts nature. Therefore many men of our time have lost not only the supernatural light but also the natural light which pagans possessed.
C. S. LewisAs long as this deliberate refusal to understand things from above, even where such understanding is possible, continues, it is idle to talk of any final victory over materialism.
C. S. LewisThere is something which unites magic and applied science (technology) while separating them from the "wisdom" of earlier ages. For the wise men of old, the cardinal problem of human life was how to conform the soul to objective reality, and the solution was wisdom, self-discipline , and virtue. For the modern, the cardinal problem is how to conform reality to the wishes of man, and the solution is a technique.
C. S. LewisThe naturalists have been engaged in thinking about Nature. They have not attended to the fact that they were thinking. The moment one attends to this it is obvious that one's own thinking cannot be merely a natural event, and that therefore something other than nature exists. The Supernatural is not remote or abstruse; it is a matter of daily and hourly experience, as intimate as breathing.
C. S. Lewis