She remembered, as every sensible person does, that you should never never shut yourself up in a wardrobe.

Once a King in Narnia, always a King in Narnia. But don't go trying to use the same route twice. Indeed, don't try to get there at all. It'll happen when you're not looking for it. And don't talk too much about it even among yourselves. And don't mention it to anyone else unless you find that they've had adventures of the same sort themselves. What's that? How will you know? Oh, you'll know all right. Odd things, they say-even their looks-will let the secret out. Keep your eyes open. Bless me, what do they teach them at these schools." -The Profesor

Only those who try to resist temptation know how strong it is. ... We never find out the strength of the evil impulse inside us until we try to fight it: and Christ, because He was the only man who never yielded to temptation, is also the only man who knows to the full what temptation means—the only complete realist.

I wish they would remember that the charge to Peter was "Feed my sheep", not "Try experiments on my rats", or even "Teach my performing dogs new tricks".

The only thing one can usually change in one's situation is oneself. And yet one can't change that either-only ask Our Lord to do so.

I must keep alive in myself the desire for my true country, which I shall not find till after death.

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.