Quote 1- Sam: "I don't know whether to give you a hug or take a shower"

Quote 2- Dean: "I guess standing too close to exploding Dick sends your ass straight to Purgatory"

Quote 3- Dean: "The rules are simple, Sam. You don’t take a joint from a guy named Don and there’s no dogs in the car"

Quote 4- Benny: "First rule of Purgatory, kid: You can’t trust nobody"

Quote 5- Dean: "Cliff Notes? I went to Purgatory, Sam hit a dog"

Quote 6- Dean: “Were you able to read anything else off the Tablet before you stashed it?"
Kevin: “Only the stuff about closing the gates of Hell. Forever"
Dean: “Come again?"
Kevin: “Banish all demons off the face of the Earth, lock them away forever. That could be important, right?"
Dean: “Closing the gates of hell forever? Yeah, that could be important"