"Let's face it, you'll never be able to live a normal life. You're just a nuisance to other people and a burden to yourself - in fact you're really leading a sort of posthumous existence. So why go on feeding germs ? Since your life's a misery to you, why hesitate to die? You're imprisoned in a tortue-chamber - why don't you break out and escape to a better world?"
2 points for anyone who gets the reference.