“You may have noticed that the books you really love are bound together by a secret thread. You know very well what is the common quality that makes you love them, though you cannot put it into words: but most of your friends do not see it at all, and often wonder why, liking this, you should also like that. Again, you have stood before some landscape, which seems to embody what you have been looking for all your life; and then turned to the friend at your side who appears to be seeing what you saw -- but at the first words a gulf yawns between you, and you realise that this landscape means something totally different to him, that he is pursuing an alien vision and cares nothing for the ineffable suggestion by which you are transported. Even in your hobbies, has there not always been some secret attraction which the others are curiously ignorant of -- something, not to be identified with, but always on the verge of breaking through, the smell of cut wood in the workshop or the clap-clap of water against the boat's side? Are not all lifelong friendships born at the moment when at last you meet another human being who has some inkling (but faint and uncertain even in the best) of that something which you were born desiring, and which, beneath the flux of other desires and in all the momentary silences between the louder passions, night and day, year by year, from childhood to old age, you are looking for, watching for, listening for? You have never had it. All the things that have ever deeply possessed your soul have been but hints of it -- tantalising glimpses, promises never quite fulfilled, echoes that died away just as they caught your ear. But if it should really become manifest -- if there ever came an echo that did not die away but swelled into the sound itself -- you would know it. Beyond all possibility of doubt you would say "Here at last is the thing I was made for". We cannot tell each other about it. It is the secret signature of each soul, the incommunicable and unappeasable want, the thing we desired before we met our wives or made our friends or chose our work, and which we shall still desire on our deathbeds, when the mind no longer knows wife or friend or work. While we are, this is. If we lose this, we lose all.”

“Straight tribulation is easier to bear than tribulation which advertises itself as pleasure.”

“It is much easier to pray for a bore than to go visit him.”

“...a hard heart is no infallible protection against a soft head.”

“How could an idiotic universe have produced creatures whose mere dreams are so much stronger, better, subtler than itself?”

“Indeed the safest road to Hell is the gradual one--the gentle slope, soft underfoot, without sudden turnings, without milestones, without signposts,...Your affectionate uncle, Screwtape.”

“Affection is responsible for nine-tenths of whatever solid and durable happiness there is in our natural lives.”

“I don't want him to live forever, and I know that he's not going to live forever whether I want him to or not.”

“If conversion to Christianity makes no improvement in a man's outward actions – if he continues to be just a snobbish or spiteful or envious or ambitious as he was before – then I think we must suspect that his 'conversion' was largely imaginary; and after one's original conversion, every time one thinks one has made an advance, that is the test to apply. Fine feelings, new insights, greater interest in 'religion' mean nothing unless they make our actual behavior better; just as in an illness 'feeling better' is not much good if the thermometer shows that your temperature is still going up. In that sense the outer world is quite right to judge Christianity by its results. Christ told us to judge by results. A tree is known by its fruit; or, as we say, the proof of the pudding is in the eating. When we Christians behave badly, or fail to behave well, we are making Christianity unbelievable to the outside world. The war-time posters told us that Careless Talk costs Lives. It is equally true that Careless Lives cost Talk. Our careless lives set the outer world taking; and we give them grounds for talking in a way that throws doubt on the truth of Christianity itself.”

“And out of that hopeless attempt has come nearly all that we call human history—money, poverty, ambition, war, prostitution, classes, empires, slavery—the long terrible story of man trying to find something other than God which will make him happy.”

“Do you mean to say," asked Caspian, "that you three come from a round world (round like a ball) and you've never told me! It's really too bad for you. Because we have fairy-tales in which there are round worlds and I have always loved them … Have you ever been to the parts where people walk about upside-down?"  Edmund shook his head. "And it isn't like that," he added. "There's nothing particularly exciting about a round world when you're there.”

“Thirst was made for water; inquiry for truth. What you now call the free play of inquiry has neither more nor less to do with the ends for which intelligence was given you than masturbation has to do with marriage.”

“I see you are an idiot, whatever else you may be...”

“They would say,” he answered, “that you do not fail in obedience through lack of love, but have lost love because you never attempted obedience.”