Klaus: “What is it you say to her?”

Damon: “....you’re worried that Caroline is never gonna forgive you.”

Klaus: “You’ve done worse.”

Damon: “Debatable. I don’t mind being the bad guy. Because somebody needs to fill that role and get things done. You do bad things for no reason. You do them to be a dick.(...)If you’re gonna be bad, be bad with purpose. Otherwise you’re just not worth forgiving"

Season 4 episode 12