Happiness consists in getting enough sleep. [..] All the wealthy, unhappy people you've ever met take sleeping pills.Sometimes we look too hard for happiness!
Tim Ferriss goes one step further in The 4-Hour Workweek:
Happiness can be bought with a bottle of wine and has become ambiguous through overuse. [..] The opposite of love is indifference, and the opposite of happiness is - here's the clincher - boredom. Excitement is the more practical synonym for happiness, and it is precisely what you should strive to chase.
And to finish with a quote from a Def Leppard song:
Are you excitable?.