Things are not just black and white out here.

Dean

What we do, you can’t learn this crap in a book. You put on a flannel, you pick up a gun, you go out there. Either you get good fast, or you get dead faster.

Dean

I’m still gonna peel off your skin and eat your soul.

Lucifer

No, seriously, Sam, what are we gonna say? "Hi, my name is Sam Winchester, and this is my much handsomer brother, Dean. We hunt monsters, oh and that guy you were banging, we’re pretty sure he made a deal with a demon, so a hellhound came and dragged his soul to Hell. But you, you’re cool. And since there’s nothing around for us to kill, peace out."

Dean

Computers - monsters, porn, is there anything they can’t do?

Dean

Mary: I'm not just a mom, and you are not a child.
Dean: I never was.

It's not your job to make my lunch. Tuck me into bed at night. You make your own choices, even if I don't like 'em.

Dean

You’re changing the world, and I want to be a part of it.

Sam

Oh my dad. I love that. You and I, both single fathers. I could use a little dad advice right about now. When do you let ‘em date?

Lucifer

No one is born good or bad. It’s all in the upbringing.

Dagon

Nothing comes before my family, not even me.

Mary

You idiots. You’re all going to die.

Crowley