“You all know," said the Guide, "that security is mortals' greatest enemy.”

“The promise, made when I am in love and because I am in love, to be true to the beloved as long as I live, commits me to being true even if I cease to be in love. A promise must be about things that I can do, about actions: no one can promise to go on feeling in a certain way. He might as well promise to never have a headache or always to feel hungry.” 

“Do not let us mistake necessary evils for good.”

“His Omnipotence means power to do all that is intrinsically possible, not to do the intrinsically impossible. You may attribute miracles to Him, but not nonsense. There is no limit to His power. If you choose to say, 'God can give a creature free will and at the same time withhold free will from it,' you have not succeeded in saying anything about God: meaningless combinations of words do not suddenly acquire meaning simply because we prifex to them the two other words, 'God can.' It remains true that all things are possible with God: the intrinsic impossibilities are not things but nonentities. It is no more possible for God than for the weakest of His creatures to carry out both of two mutually exclusive alternatives; not because His power meets an obstacle, but because nonsense remains nonsense even when we talk it about God.”

“A perfect man would never act from a sense of duty; he’d always want the right thing more than the wrong one. Duty is only a substitute for love (of God and of other people) like a crutch which is a substitute for a leg. Most of us need the crutch at times; but of course it is idiotic to use the crutch when our own legs (our own loves, tastes, habits etc.) can do the journey on their own.”

“How many hours are there in a mile? Is yellow square or round? Probably half the questions we ask-half our great theological and metaphysical problems-are like that.”

“Life is too deep for words, so don't try to describe it, just live it. Actually this quote doesn't sound like C.S. Lewis at all. Can anyone provide a source?”

“The sight of the huge world put mad ideas into me, as if I could wander away, wander forever, see strange and beautiful things, one after the other to the world's end.”

“The man is a humbug — a vulgar, shallow, self-satisfied mind, absolutely inaccessible to the complexities and delicacies of the real world. He has the journalist's air of being a specialist in everything, of taking in all points of view and being always on the side of the angels: Walter Helwich merely annoys a reader who has the least experience of knowing things, of what knowing is like. There is not two pence worth of real thought or real nobility in him. But he isn't dull…”

“The Future is, of all things, the thing least like eternity. It is the most temporal part of time--for the Past is frozen and no longer flows, and the Present is all lit up with eternal rays.”

“But that would be putting the clock back," gasped the Governor. "Have you no idea of progress, of development?" "I have seen them both in an egg," said Caspian. "We call it Going bad in Narnia.” 

“Welcome, Prince,' said Aslan. 'Do you feel yourself sufficient to take up the Kingship of Narnia?' I - I don't think I do, Sir,' said Caspian. 'I am only a kid.' Good,' said Aslan. 'If you had felt yourself sufficient, it would have been proof that you were not.”

“Then I fell at his feet and thought, Surely this is the hour of death, for the Lion (who is worthy of all honour) will know that I have served Tash all my days and not him. Nevertheless, it is better to see the Lion and die than to be Tisroc of the world and live and not to have seen him. But the Glorious One bent down his golden head and touched my forehead with his tongue and said, Son, thou art welcome. But I said, Alas Lord, I am no son of thine but the servant of Tash. He answered, Child, all the service thou hast done to Tash, I account as service done to me. Then by reasons of my great desire for wisdom and understanding, I overcame my fear and questioned the Glorious One and said, Lord, is it then true, as the Ape said, that thou and Tash are one? The Lion growled so that the earth shook (but his wrath was not against me) and said, It is false. Not because he and I are one, but because we are opposites, I take to me the services which thou hast done to him. For I and he are of such different kinds that no service which is vile can be done to me, and none which is not vile can be done to him. Therefore if any man swear by Tash and keep his oath for the oath’s sake, it is by me that he has truly sworn, though he know it not, and it is I who reward him. And if any man do a cruelty in my name, then, though he says the name Aslan, it is Tash whom he serves and by Tash his deed is accepted. Dost thou understand, Child? I said, Lord, though knowest how much I understand. But I said also (for the truth constrained me), Yet I have been seeking Tash all my days. Beloved, said the Glorious One, unless thy desire had been for me thou wouldst not have sought so long and so truly. For all find what they truly seek.”

“Lucy woke out of the deepest sleep you can imagine, with the feeling that the voice she liked best in the world had been calling her name.”

“You can be good for the mere sake of goodness; you cannot be bad for the mere sake of badness. You can do a kind action when you are not feeling kind and when it gives you no pleasure, simply because kindness is right; but no one ever did a cruel action simply because cruelty is wrong - only because cruelty is pleasant or useful to him, In other words, badness cannot succeed even in being bad in the same way in which goodness is good. Goodness is, so to speak, itself: badness is only spoiled goodness. And there must be something good first before it can be spoiled.”