As well as two of Edward's quotes:
Life is like building a house of cards; you can spend your entire existence adding more cards to the house, only for the slightest disruption to bring it all crashing down.
The world isn't like that. Fate is... fickle, at best. You'd always hear stories in childhood of the "good knight" defeating the evil dragon. Bullshit. The world's not like that. It doesn't give a damn about what or who you stand for, as long as you put on a good show.