"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."