I do the things I do because I'm just a plain Almond Joy Nut.
Dear Purple Haze,
It was the Buddhists who have the answer there that makes all sorts of sense to me...and that is,
Every single thing we ever do is done for one purpose, only one reason, and that reason is we are trying to be happy.
its human nature
Each person has their own motivations. It often depends on the things that happened in their lives and how they were treated.
Programming.
Its the choices that we make.
Hippy's answer is good. So is Michael's. And it's hard to deny Virginia's.
Me? I think we do what we do because of our conditioning. From childhood we learn to react in certain ways to particular stimuli. As we mature we get the chance to step back and examine our reactions with reason. Eventually we do the things we do because they feel appropriate to our self-awareness.