How is it I can kill people and feel no regret, but disappointing Rita makes me feel like the scum of the earth?

Dexter: My dark passenger is ruining my life.
Harry: It is your life.

I need to be a good brother now, so I can be a good serial killer later.

Dexter: Who am I right now: Dexter Morgan serial killer or Dexter Morgan brother?

Love thy neighbor? Bullshit. I should leave it alone, go inside, watch the History Channel.

If I can make the police think the Trinity Killer is someone else, Arthur is all mine.

Deb: Where you off to?
Dexter: Kill a guy you're looking for. Save a kid. Remember to pick up diapers.

Dexter: He's never taken a child before.
Harry: That you know of. If this is new, it's on you.

I know that look. I'm not the only one on a stalk.

Trinity: Confession is good for the soul.
Dexter: All the more proof I have no soul.

Scheduling my activities around her Downward Facing Dog could prove challenging.

I really do need to stab something.

Dexter Quotes

I've lived in darkness a long time. Over the years, my eyes adjusted until the dark became my world and I could see. But then Rudy turned on the light. He flooded my memory and now I'm blind.

Dexter Morgan

Tonight's the night. And it's going to happen again, and again. It has to happen. Nice night.

Dexter Morgan