"I am a pantheist because I believe in the miracle of the universe, I believe that by being the best person I can be - loving, compassionate, inquisitive, seeking justice, being respectful - I am adding what I can to the universe while I am here. When I am gone, I am stardust, and nothing could be better than that."
"Nothing is true, everything is permitted." It means for me that you are what you want to be. It's my way of life.
Anyways, it's from Assassin's Creed.