I hope I quote correctly:

"Stupid, fat Hobbit!"

Odo

When Gandalf is presenting Aragorn to be crowned:

"Here is Aragorn son of Arathorn, chieftain of the Dunedain of Arnor, Captain of the Host of the West, bearer of the Star of the North, wielder of the Sword Reforged, victorious in battle, whose hands bring healing, the Elfstone, Elessar of the line of Valandil, Isildur's son, Elendil's son of Numenor."

This is quite possibly the best title ever...

Agreed, Tar-Palantir; I can't think of a cooler one. You actually just reminded me of when I did a monologue in theatre class based on that scene. Good times....

The wide world is all about you: you can fence yourselves in, but you cannot for ever fence it out.

here are one of my faves:
"I wish the ring had never come to me... I wish none of this had happened." - Frodo Baggins

I always loved Bilbo's walking song, "The Road Goes Ever On and On." So much so that I got that first line tattooed on my wrist in Angerthas Erebor.

Some of my favorites..I have alot

"Farewell" he said to Gandalf "I go to find the sun" - Legolas

"You cannot pass," he said. The orcs stood still, and a dead silence fell. "I am a servant of the Secret Fire, wielder of the flame of Anor. You cannot pass. The dark fire will not avail you, flame of Udûn. Go back to the Shadow! You cannot pass."
-Gandalf

"The Dark Lord has Nine. But we have One, mightier than they: the White Rider. He has passed through the fire and the abyss, and they shall fear him. We will go where he leads." - Aragorn

"These we will take!" said Gandalf suddenly. He cast aside his cloak and a white light shone forth like a sword in that black place. Before his upraised hand the foul Messenger recoiled, and Gandalf coming seized and took from him the tokens; coat, cloak, and sword. "These we will take in memory of our friend," he cried. "But as for your terms, we reject them utterly. Get you gone, for your embassy is over and death is near to you. We did not come here to waste words in treating with Sauron, faithless and accursed; still less of his slaves. Begone!" - Gandalf

"That there's some good in the world, Mr. Frodo, and it's worth fighting for." - Sam (in the movie)

"I cannot give it up and if you tried to take it from me I should go mad."

"My master Sauron the Great bids thee welcome"

"What's it doing? Stupid fat hobbit!"

"My Precious..."

These are all quotes I use on a regular basis

That entire scene, especially in the movie, gets me every time.