According to Arthur Brooks, President, American Enterprise Institute, six months after winning the lottery and you will be less happy than you were before. Or, six months after doubling your salary and you won't care anymore. So while you may devote your life to big material goals, the payoff will be short, and the cost of these goals may last forever. Brooks says don't worry about making the big splash, consistently make work you are proud of and add relative value in the free enterprise system and you will be happiest of all.