“Frodo: I can’t do this, Sam.

Sam: I know. It’s all wrong. By rights we shouldn’t even be here. But we are. It’s like in the great stories, Mr. Frodo. The ones that really mattered. Full of darkness and danger, they were. And sometimes you didn’t want to know the end. Because how could the end be happy? How could the world go back to the way it was when so much bad had happened? But in the end, it’s only a passing thing, this shadow. Even darkness must pass. A new day will come. And when the sun shines it will shine out the clearer. Those were the stories that stayed with you. That meant something, even if you were too small to understand why. But I think, Mr. Frodo, I do understand. I know now. Folk in those stories had lots of chances of turning back, only they didn’t. They kept going. Because they were holding on to something.

Frodo: What are we holding onto, Sam?

Sam: That there’s some good in this world, Mr. Frodo… and it’s worth fighting for.”

Or the book version:

“Yes, that’s so,’ said Sam. ‘And we shouldn’t be here at all, if we’d known more about it before we started. But I suppose it’s often that way. The brave things in the old tales and songs, Mr. Frodo: adventures, as I used to call them. I used to think that they were things the wonderful folk of the stories went out and looked for, because they wanted them, because they were exciting and life was a bit dull, a kind of a sport, as you might say. But that’s not the way of it with the tales that really mattered, or the ones that stay in the mind. Folk seem to have been just landed in them, usually – their paths were laid that way, as you put it. But I expect they had lots of chances, like us, of turning back, only they didn’t. And if they had, we shouldn’t know, because they’d have been forgotten. We hear about those as just went on – and not all to a good end, mind you; at least not to what folk inside a story and not outside it call a good end. You know, coming home, and finding things all right, though not quite the same – like old Mr Bilbo. But those aren’t always the best tales to hear, though they may be the best tales to get landed in! I wonder what sort of a tale we’ve fallen into?’
‘I wonder,’ said Frodo. ‘But I don’t know. And that’s the way of a real tale. Take any one that you’re fond of. You may know, or guess, what kind of a tale it is, happy-ending or sad-ending, but the people in it don’t know. And you don’t want them to.’