Dexter, Season 2

Dexter:
Regardless of how we got here, one of the two killers in this cabin has to go away.

Doakes:
I am not a killer.

Dexter:
Right. In terms of who goes, it boiled down to a philosophical question: which one of us has more inherent worth?

Doakes:
I know you're f***ing kidding me.

Dexter:
First I considered our value to the community. That was a wash. We're both loyal civil servants, we work hard to keep the city clean.

Doakes:
… You cut people up into little pieces …

Dexter:
Then I looked at our personal lives, and … well, it's where the differences became clearer. Strange as it may seem, I have people who depend on me. They would be devastated if they found out what I do. You, Sergeant, you're more of a lone wolf. Easier to put down, no one in the pack to miss you.

Doakes:
F*** you. F*** you, Morgan, I have a family. I have my mother, my sisters.

Dexter:
Who you never visit. Puts a pit in my stomach, that I can only interpret as … sadness. If you had a personal life, you might not have made me your obsession, and we might not be here right now.