Well I recently wondered the same question here and I pondered about it for a minute and realized there really is no wrong answer. We can sit here and debate here about what to do in life but when we do that we lose the time living life instead arguing over it. Lets say I say we only live once that may be what I believe in but you may think other wise (according to religion). The purpose to me otherwise is like the karma system sorta related to Christianity. Now sadly we are humans and rules don't usually apply to most so we break it usually for fun or for self needs. If you can live live your life harmful without harming anyone in my opinion if you really enjoy better than following the rules then go for it but then again its just my opinion. In conclusion live your life by any needs necessary.
The purpese of life is to do something with it like you coild become th ePresident or something you can get arrested do something with it so life can last for a long time. You need to enjoy life as much as you can.
