"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 feel deep down that you are yourself an extraordinary being."
- Jostein Gaarder, Sophie's World