For Christianity is a fighting religion. It thinks God has made the world- that space and time, heat and cold, and all the colors and tastes, and all the animals and vegetables, are things that God 'made up out of His head' as a man makes up a story. But it also thinks that a great many things have gone wrong with the world that God made and that God insists, and insists very loudly, on our putting them right again.

The man who truly and disinterestedly enjoys any one thing in the world, for its own sake, and without caring two-pence what other people say about it, is by that very fact forewarmed against some of our subtlest modes of attack.

[M]an has been accustomed, ever since he was a boy, to having a dozen incompatible philosophies dancing about together inside his head. He doesn't think of doctrines as primarily "true" or "false," but as "academic" or "practical," "outworn" or "contemporary," "conventional" or "ruthless." Jargon, not argument, is your best ally in keeping him from the Church. Don't waste time trying to make him think that materialism is true! Make him think it is strong or stark or courageous—that it is the philosophy of the future. That's the sort of thing he cares about.

Only a real risk tests the reality of a belief.

If God thinks this state of war in the universe is a price worth paying for free will--that is, for making a live world in which creatures can do real good or harm and something of real importance 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.

Whatever he says, let his inner resolution be not to bear whatever comes to him, but to bear it 'for a reasonable period'--and let the reasonable period be shorter than the trial is likely to last. It need not be much shorter; in attacks on patience, chastity, and fortitude, the fun is to make the man yield just when (had he but known it) relief was almost in sight.

Creatures are not born with desires unless satisfaction for those desires exists. A baby feels hunger: well, there is such a thing as food. A duckling wants to swim: well, there is such a thing as water...If I find in myself a desire, which no experience in this world can satisfy, the most probable explanation is that I was made for another world.