Too many to pick a favorite. Here are some I loved:
From Henry V, Kenneth Branagh's version, with the music swelling, and Henry is addressing his troops before going out to battle in which some of them would die, tells them how lucky they are to be fighting that day:
And Crispin Crispian shall ne'er go by from this day until the ending of the world but we in it shall be remembered. We few, we happy few, we band of brothers. For he today who sheds his blood with me shall be my brother. Be he ne'er so vile, this day shall gentle his condition, and gentlemen in England now abed shall think themselves acursed they were not here, and hold their manhoods cheap whilst any speaks, that fought with us upon St. Crispin's day!But for memorable movie lines, I don't think anyone has topped Mae West yet. Note this selection of lines from just one movie, I'm No Angel, where she plays a woman named Tira:
Rajah: You were born in August.
Tira: Yeah, one of the hot months.
Rajah: It was on the 17th under the sign of Leo, the Lion.
Tira: Aw, King of the Beasts, huh.
Rajah: Ah, you have a wonderful future. I see a man in your life.
Tira: What, only one?
Rajah: But this is one very particular man. He is very wealthy, enormously wealthy.
Tira: ...What does he look like?
Rajah: I see he has brown eyes. In fact, I see two men...two different men. In the near future, I see a change....I see a change of position.
Tira: Sitting or reclining?...
Rajah: The horoscope. Keep this where you may consult it frequently.
Tira: All right, I'll take it to bed with me.
Tira: Married five times!...Wedding bells must sound like an alarm clock to you.
The Chump: I don't suppose you believe in marriage, do you?
Tira: Only as a last resort...What do you do for a livin'?
The Chump: Oh, uh, sort of a politician.
Tira: I don't like work either.
The Chump: Oh, you know I like to get around and travel, and believe me I've been places and seen things.
Tira: I've been things and seen places. That sorta evens us up, huh?
Big Bill: I changed my mind.
Tira: Does it work any better?
Reporter: Why did you admit knowing so many men in your life?
Tira: Well, it's not the men in your life that counts, it's the life in your men.
Jack: Tonight, you were especially good.
Tira: When I'm good, I'm very good. But when I'm bad, I'm better.