“I have learned now that while those who speak about one's miseries usually hurt, those who keep silence hurt more.” 

“Love may, indeed, love the beloved when her beauty is lost: but not because it is lost. Love may forgive all infirmities and love still in spite of them: but Love cannot cease to will their removal. Love is more sensitive than hatred itself to every blemish in the beloved… Of all powers he forgives most, but he condones least: he is pleased with little, but demands all.”

“this is a book about something”

“One always feel better when one has made up one's mind.”

“It is a happy moment when our desire crosses with the will of Heavenly Father.” 

“I would rather be what God chose to make me than the most glorious creature that I could think of; for to have been born in God's thought, and then made by God is the dearest, grandest, and most precious thing in all thinking."

“Evil can be undone, but it cannot 'develop' into good. Time does not heal it. The spell must be unwound, bit by bit, 'with backward mutters of dissevering power' - or else not.”

“I do not think there is a demonstrative proof (like Euclid) of Christianity, nor of the existence of matter, nor of the good will and honesty of my best and oldest friends. I think all three are (except perhaps the second) far more probable than the alternatives. The case for Christianity in general is well given by Chesterton…As to why God doesn't make it demonstratively clear; are we sure that He is even interested in the kind of Theism which would be a compelled logical assent to a conclusive argument? Are we interested in it in personal matters? I demand from my friend trust in my good faith which is certain without demonstrative proof. It wouldn't be confidence at all if he waited for rigorous proof. Hang it all, the very fairy-tales embody the truth. Othello believed in Desdemona's innocence when it was proved: but that was too late. Lear believed in Cordelia's love when it was proved: but that was too late. 'His praise is lost who stays till all commend.' The magnanimity, the generosity which will trust on a reasonable probability, is required of us. But supposing one believed and was wrong after all? Why, then you would have paid the universe a compliment it doesn't deserve. Your error would even so be more interesting and important than the reality. And yet how could that be? How could an idiotic universe have produced creatures whose mere dreams are so much stronger, better, subtler than itself?”

“But as long as you know you're nobody special, you'll be a very decent sort of Horse, on the whole, and taking one thing with another.”

“In reading Chesterton, as in reading MacDonald, I did not know what I was letting myself in for. A young man who wishes to remain a sound Atheist cannot be too careful of his reading. There are traps everywhere — "Bibles laid open, millions of surprises," as Herbert says, "fine nets and stratagems." God is, if I may say it, very unscrupulous.”

“Giant Wimbleweather burst into one of those not very intelligent laughs to which the nicer sort of Giants are so liable. He checked himself at once and looked as grace as a turnip by the time Reepicheep discovered where the noise came from.”

“There was a boy called Eustace Clarence Scrubb, and he almost deserved it.”

“[The devil] always sends errors into the world in pairs--pairs of opposites. And he always encourages us to spend a lot of time thinking which is the worse. You see why, of course? He relies on your extra dislike of the one error to draw you gradually into the opposite one.”

“Bent creatures are full of fears”

“In the same way a Christian is not a man who never goes wrong, but a man is enabled to repent and pick himself up and begin over again after each stumble--because the Christ-life is inside him, repairing him all the time, enabling him to repeat (in some degree) the kind of voluntary death which Christ Himself carried out." - Mere Christianity”