Even if we do, how much of our own individual happiness is within our own control? Of course some things in life happen as a result of our own decisions, but a lot of the time we are just reacting to things we have no control over at all. It's because of this that the concept of happiness can often seem illusive.
A wise person said to me recently that the trick was to distinguish between those things we could change and the things that we can't. Once we have done that, happiness can best be achieved by learning to accept the things we can't change and doing something about the things we can. At the very least it's a good starting point.
I've also learnt that being wise does not mean being old. This evening I encountered true happiness right next to me at the kitchen table. It involved Minttu, a chocolate ice cream and lots of mess. And that's all. Which means that sometimes the solution can be a lot simpler than at first it may seem. Ice cream anyone?