Yes that quote is one of my favorites, how many people do you see on a daily basis that don't complain about a single thing.?........probably none, but how many of those people are taking any kind of steps to alter their situation?..........probably none. That is definitely insanity. But it is good to have a good old rant sometimes :D I love a good rant my self. It just helps to connect with people who feel the same way sometimes, because a lot of people act like they are unhappy as in they moan all the time, but are actually quite comfortable too with the flat screen TV, bottle of wine at night, sense of security etc.
Hope you feel better after your rant anyway :)