“I have gone around observing your activities from the outside. Because of this I have also been able to see things to which you have been blind... Every morning you have gone to work, but you have never been fully awake. Of course, you have seen the sun and the moon, the stars in the sky, and everything that moves, but you haven't really seen it at all. It is different for the Joker, because he was put into this world with a flaw: He sees too clearly and too much.”

“I don't belong anywhere. I am neither a heart, a diamond, a club, nor a spade. I am neither a King, a Jack, an Eight, nor an Ace. As I am here - I am merely the Joker, and who that is I have had to find out for myself.Every time I toss my head, the jingling bells remind me that I have no family. I have no number - and no trade either. I have gone around observing your activities from the outside.Because of this I have also been able to see things to which you have been blind.Every morning you have gone to work, but you have never been fully awake. It is different for the Joker, because he was put into this world with a flaw: he sees too deeply and too much.Truth is a lonely thing.”

“A Russian cosmonaut and a Russian brain surgeon were once discussing Christianity. The brain surgeon was a Christian, but the cosmonaut wasn’t. ‘I have been in outer space many times,’ bragged the cosmonaut, ‘but I have never seen any angels.’ The brain surgeon stared in amazement, but then he said, ‘And I have operated on many intelligent brains, but I have never seen a single thought.”

“let's say you and a small child go to a magic show, where things are made to float in the air. Which of you would have the most fun?""I probably would.""And why would that be?""Because I would know how impossible it all is.""So... for the child it's no fun to see the laws of nature being defied before it has learned what they are.""I guess that's right.""And we are still at the crux of Hume's philosophy of experience. He would have added that the child has not yet become a slave of the expectations of habit; he is thus the more open-minded of you two. I wonder if the child is not also the greater philosopher? He comes utterly without preconceived opinions. And that, my dear Sophie, is the philosopher's most distinguishing virtue. The child perceives the world as it is, without putting more into things than he experiences”

“Imagine that you were on the threshold of this fairytale, sometime billions of years ago when everything was created. And you were able to choose whether you wanted to be born to a life on this planet at some point. You wouldn’t know when you were going to be born, nor how long you’d live for, but at any event it wouldn’t be more than a few years. All you’d know was that, if you chose to come into the world at some point, you’d also have to leave it again one day and go away from everything. This might cause you a good deal of grief, as lots of people think that life in the great fairytale is so wonderful that the mere thought of it ending can bring tears to their eyes. Things can be so nice here that it’s terribly painful to think that at some point the days will run out. What would you have chosen, if there had been some higher power that had gave you the choice? Perhaps we can imagine some sort of cosmic fairy in this great, strange fairytale. What you have chosen to live a life on earth at some point, whether short or long, in a hundred thousand or a hundred million years? Or would you have refused to join in the game because you didn’t like the rules? (...) I asked myself the same question maybe times during the past few weeks. Would I have elected to live a life on earth in the firm knowledge that I’d suddenly be torn away from it, and perhaps in the middle of intoxicating happiness? (...) Well, I wasn’t sure what I would have chosen. (...) If I’d chosen never to the foot inside the great fairytale, I’d never have known what I’ve lost. Do you see what I’m getting at? Sometimes it’s worse for us human beings to lose something dear to us than never to have had it at all.”

“Then you have a big problem, because a human is a thinking animal. If you don't think, you're not really a human.”

“Imagine that one day you are out for a walk in the woods. Suddenly you see a small spaceship on the path in front of you. A tiny Martian climbs out the spaceship and stands on the ground looking up at you…What would you think? Never mind, it’s not important. But have you ever given any thought to the fact that you are a Martian yourself?It is obviously unlikely that you will ever stumble upon a creature from another planet. We do not even know that there is life on other planets. But you might stumble upon yourself one day. You might suddenly stop short and see yourself in a completely new light. On just such a walk in the woods. I am an extraordinary being, you think. I am a mysterious creature.You feel as if you are waking from an enchanted slumber. Who am I? you ask. You know that you are stumbling around on a planet in the universe. But what is the universe?If you discover yourself in this manner you will have discovered something as mysterious as the Martian we just mentioned. You will not only have seen a being from outer space. You will feel deep down that you are yourself an extraordinary being.”