Can you justify your existence?

Question

My favorite justification is a quote from a TV show..
"I bring pleasure to the world because I have such a beautiful a**."
If you know where my quote comes from, you will get the ten points..
Quotes from TV, movies, or even literature will be accepted (even the NT, I do allow fiction here)

Answer 1

Quote from the cat in Red Dwarf after the grand inquisitor,who can erase him from existance , asks him to justify himself.