Happiness

Aristotle said in one of this writings that happiness is in fulfilling the function of man.  Which according to him, was leading a virtuous and rational life where someone pursued what they did best.  Now obviously this is quite the flawed way for attaining happiness, because everyone knows that there are tons of people who hate their job, but they are good at it.  Regardless of how to attain happiness, the question lies of what is happiness.

I don't know what the general consensus is, but the two main thoughts are that there is either an objective definition of what happiness is, or that happiness is different for each person.  The one thing agreed on though, is that everyone looks for happiness at one point of time or another.  But it has to make one wonder, do we just look for happiness because we are told that happiness is good (or in some cases, even considered the ultimate good).  Would we even have a concept of happiness if we weren't told by someone else?  I mean someone had to come up with the concept in the first place, so I imagine we would know, but probably not in the same manner as we do today.

What would happiness even entail?  Would it be "good" enough for you to forget everything else?  Would it even be a good thing?

Whatever the deal with happiness is, I gave up on looking for it a long time ago.  So if it comes to me, then good, other wise, if someone stumbles across it, please share.