[Manardariel]

My favourites:

"Shall I always be chosen? Shall I always be left behind when the riders depart, to mind the house while thy win renoun, and find food and beds when they return?"
"All your words are but to say, you are a woman, and your part os in the house. But when the men have did in battle and honor, you have leave to be burned in thee house, for the men will need it no more. But I am of the house of Eorl, and not a serving woman.I can ride and wield blade, and I do not feel either pain or death"
"A cage. To stay behind bars, untill use and old age accept them, and all chance of doing great deeds is beyond recall or desire."

All Eowyn, Eomunds daughter, Shieldmaiden of Rohan, the White Lady of Ithilien
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Some more:
"I made a promise Mr. Frodo. Don´t you loose him, Sam Gamgee. And I don´t mean to."
Sam, in the FOTR movie

"And now, at last it comes. You will give me the ring freely. Instead of the dark Lord, you will set up a queen. And I shall not be dark, but beautiful, and terrible as the morning and the night! Fair as the Sea and the Sun and the Snow upon the Mountain!Dreadful as the Storm and the Lightning! Stronger than the foundations of the earth. All shall love me and despair."
*~Galadriel, last of the Noldor in exile, Lady of the Golden Wood