"I forgive you" (Season Five, Episode One: "Live Free or Die")
Political theorists argue that a dictator's absolute power can also be his downfall. When you have the ability to shape the world to your whims and punish anyone who tries to tell you otherwise, you lose access to any information that doesn't fit your preexisting idea of how the World According to You works – and in the rapidly changing real world, that's a fatal flaw. By "forgiving" his mortified wife Skyler for crimes far less horrifying than his own, the increasingly arrogant and odious King Walt reveals that he and that rapidly changing world are barely on speaking terms anymore. That fantasy's gonna crash and burn real soon.