Quote from : Captain America: The Winter Soldier Movie

Steve Rogers: You know me.
The Winter Soldier: No, I don't!
[attacks Steve]
Steve Rogers: Bucky. you've known me your entire life. Your name is James Buchanan Barnes...
The Winter Soldier: SHUT UP!
[hits Steve]
Steve Rogers: I'm not gonna fight you. You're my friend.
[drops his shield]
The Winter Soldier: [Lunges at Steve and repeatedly pummels him] You're my mission! YOU ARE MY MISSION!
Steve Rogers: [bruised and bloodied just as the Winter Soldier is about to deliver a final blow] Then finish it. 'Cause I'm with you 'til the end of the line.