Regret

Regret is the fifth, and last, of the Desmond's Journey sequences in Assassin's Creed: Revelations.

Description
Desmond Miles explored the Animus, where he was confronted with his past.

Dialogue

 * Desmond: After nine years of being away, my old bitterness was back. I was tired again. I didn't want to admit that moving forward might mean taking a step back. The shine of the city had faded. The freedom I felt was hollow without old friends, without family. And then... then they came for me. Abstergo. They had been looking for me. I couldn't believe it.
 * Agent: Mister Miles?
 * Desmond: Yeah...
 * Desmond: I spent half my life trying to forget everything my parents taught me, everything I thought was a lie.
 * Agent: Desmond Miles?
 * Desmond: Yeah, what's this about?
 * Desmond: And suddenly, I wanted it all back. All that training, all that time. But I couldn't. Those days. They were gone.
 * Desmond: Why are you doing this to me?
 * Warren Vidic: You have information we need Mister Miles.
 * Desmond: Information? I'm a bartender for Christ's sake!
 * Vidic: We know who you are. WHAT you are.
 * Desmond: I don't know what you're talking about!
 * Vidic: Don't play coy with me, there isn't time. You're an assassin. You've got something my employers want. Locked away in that head of yours.
 * Desmond: Bastards!
 * Desmond: In a few short months, my life changed forever. I know my easiest days are behind me. But I don't want them back. Not now.
 * Desmond: My name is Desmond Miles... and I am an assassin.
 * Desmond: I AM an assassin.

Source

 * Assassin's Creed: Revelations