Cyrano de Bergerac, the ending. It's a little long, but is definitely my favorite quote of all.

That I make a treaty? Never, never!
Ah! Are you there, Stupidity?
I know that you’ll lay me low in the end
No matter! I fight on! I fight! I fight again!
(He makes passes in the air, and stops, breathless.)
Yes you take all from me: the laurel and the rose!
Take them! Despite you there’s something though
I keep, that tonight, as I go to meet my Deity,
will brush the blue threshold beneath my feet,
something I bear, in spite of you all, that’s
free of hurt, or stain,
(He springs forward, his sword raised;
and that’s…
(The sword falls from his hand; he staggers, and falls back into the arms of Le Bret and Ragueneau.)
ROXANE (bending and kissing his forehead):
that’s? ...
CYRANO (opening his eyes, recognizing her, and smiling as he speaks: the actor must try to convey the multiple meanings of the word panache, a feather, the plume in his hat, display, swagger, attack, or just spirit.):
My panache.