Frodo's harrowing line, "The Ring is mine!"
Eowyn's fearlessness, "I fear neither death nor pain."
Arwen's lovingness, "I would rather spend one life with you, than face all the ages of this world alone."
Galadriel's encouragement, "Even the smallest person can change the course of the future."
Aragorn's entire speach before the Black Gate, ending with "By all that you hold dear on this good earth, I bid you stand, Men of the West!"
Elrond's despair, "There is nothing for you here, only death."
Sam's hope, "That there is some good in this world, Mr. Frodo. And it's worth fighting for."
Pippin's humor (unintentional though it is), "Where are we goin'?"
Aragorn's brief, "For Frodo."
Merry's humor, "I think we might have made a mistake in leaving the Shire, Pippin."
Plus many, many more! I know, I really was supposed to put just one, but I pretty sure that's impossible!