“But it does not seem that I can trust anyone,' said Frodo.Sam looked at him unhappily. 'It all depends on what you want,' put in Merry. 'You can trust us to stick with you through thick and thin--to the bitter end. And you can trust us to keep any secret of yours--closer than you keep it yourself. But you cannot trust us to let you face trouble alone, and go off without a word. We are your friends, Frodo.”

“You can trust us to stick to you through thick and thin – to the bitter end. And you can trust us to keep any secret of yours – closer than you yourself keep it. But you cannot trust us to let you face trouble alone, and go off without a word. We are your friends, Frodo. Anyway: there it is. We know most of what Gandalf has told you. We know a good deal about the ring. We are horribly afraid–but we are coming with you; or following you like hounds.”

“This kind of knowing you can never tell to anyone. If you want us to survive, you cannot trust a soul'... 'Not for any reason on this earth. You can never tell,”

“All we can go on is what we think, how we see the world. If you can't trust your own mind what can you trust?”

“There's ways you can trust an enemy you can't always trust a friend. An enemy's never going to betray your trust.”

“If you cannot trust yourself, you cannot even trust your mistrust of yourself - so that without this underlying trust in the whole system of nature you are simply paralyzed”