I was playing Assassin's Creed: Brotherhood last night and one of my Assassins was being intitiated into the Brotherhood. When Ezio said 'Nothing is True, Everything is Permitted' my dad walked into the room and had this long conversation with me about what that phrase really means. I personally think it was meant to remind Assassins to question everything and not put themselves down for the acts they have to committ for the preservation of free will. My dad thinks it's something to do with god and how if he doesn't exist, then there's nothing that a person can't do.
What are your opinions?