Nostalgia

"In my life I have found nostalgia to be a very dangerous thing.  Unlike hindsight, which shows you your folly in a painful, morning-after clarity, nostalgia is a pretty store window into the past, smeared with Vaseline, all dreamy-looking.  If hindsight is 20/20, then nostalgia is a look back through rose-colored glasses.  Rose colored glasses that filter out all those pesky rays of truth, showing you happy times, usually much happier than they actually were, that are gone forever.  Sure, you'll be happy again in the future; you may even be happy in the present, but nostalgia takes you by the hand, leads you into the past, and shows you a happiness you'll never quite have again -- because you never really had it in the first place.  To most people nostalgia is sweet.  To me it is bitter and masochistic, but most of all, completely useless."