“Some people feel guilty about their anxieties and regard them as a defect of faith. I don't agree at all. They are afflictions, not sins. Like all afflictions, they are, if we can so take them, our share in the Passion of Christ”

“No book is really worth reading at the age of ten which is not equally – and often far more – worth reading at the age of fifty and beyond.”

“You can do more with a castle in a story than with the best cardboard castle that ever stood on a nursery table.”

“if you do one good deed your reward usually is to be set to do another and harder and better one.”

“A moderated religion is as good for us as no religion at all—and more amusing.” 

“There is no neutral ground in the universe. Every square inch, every split second is claimed by God, and counterclaimed by Satan.”

“You will say that these are very small sins; and doubtless, like all young tempters, you are anxious to be able to report spectacular wickedness. But do remember, the only thing that matters is the extent to which you separate the man from the Enemy. It does not matter how small the sins are provided that their cumulative effect is to edge the man away from the Light and out into the Nothing. Murder is no better than cards if cards can do the trick. Indeed the safest road to Hell is the gradual one-the gentle slope, soft underfoot, without sudden turnings, without milestones, without signposts.”

“We regard God as an airman regards his parachute; it's there for emergencies but he hopes he'll never have to use it.”

“Mental pain is less dramatic than physical pain, but it is more common and also more hard to bear. The frequent attempt to conceal mental pain increases the burden: it is easier to say “My tooth is aching” than to say “My heart is broken.”

“The Christian is in a different position from other people who are trying to be good. They hope, by being good, to please God if there is one; or — if they think there is not — at least they hope to deserve approval from good men. But the Christian thinks any good he does comes from the Christ-life inside him. He does not think God will love us because we are good, but that God will make us good because He loves us; just as the roof of a greenhouse does not attract the sun because it is bright, but becomes bright because the sun shines on it.”

“God created things which had free will. That means creatures which can go wrong or right. Some people think they can imagine a creature which was free but had no possibility of going wrong, but I can't. If a thing is free to be good it's also free to be bad. And free will is what has made evil possible. Why, then, did God give them free will? Because free will, though it makes evil possible, is also the only thing that makes possible any love or goodness or joy worth having. A world of automata -of creatures that worked like machines- would hardly be worth creating. The happiness which God designs for His higher creatures is the happiness of being freely, voluntarily united to Him and to each other in an ecstasy of love and delight compared with which the most rapturous love between a man and a woman on this earth is mere milk and water. And for that they've got to be free. Of course God knew what would happen if they used their freedom the wrong way: apparently, He thought it worth the risk. (...) If God thinks this state of war in the universe a price worth paying for free will -that is, for making a real world in which creatures can do real good or harm and something of real importance can happen, instead of a toy world which only moves when He pulls the strings- then we may take it it is worth paying.”

“This moment contains all moments.”

“If they are wrong they need your prayers all the more; and if they are your enemies, then you are under orders to pray for them. That is one of the rules common to the whole house.” 

“The truest and most horrible claim made for modern transport is that it “annihilates space.” It does. It annihilates one of the most glorious gifts we have been given. It is a vile inflation which lowers the value of distance, so that a modern boy travels a hundred miles with less sense of liberation and pilgrimage and adventure than his grandfather got from traveling ten. Of course if a man hates space and wants it to be annihilated, that is another matter. Why not creep into his coffin at once? There is little enough space there.”

“There is something in natural affection which will lead it on to eternal love more easily than natural appetite could be led on. But there's also something in it which makes it easier to stop at the natural level and mistake it for the heavenly. Brass is mistaken for gold more easily than clay is. And if it finally refuses conversion its corruption will be worse than the corruption of what ye call the lower passions. It is a stronger angel, and therefor, when it falls, a fiercer devil.”