Calvin and Hobbes by Bill Watterson for May 17, 1992
Calvin: It's true, Hobbes, ignorance is bliss. Once you know things, you start seeing problems everywhere...and once you see problems, you feel like you ought to try to fix them..and fixing problems always seems to require personal change. And change means doing things that aren't fun! I say phooey to that! But if you're willfully stupid, you don't know any better, so you can keep doing whatever you like! The secret to happiness is short-term, stupid self-interest! Hobbes: We're heading for that cliff! Calvin: I don't want to know about it. Waaaaaugghhhhh! Hobbes: I'm not sure I can stand so much bliss. Calvin: Careful! We don't want to learn anything from this.