Don't got one, don't see a need.
It helps to be flexible, and all the laws have flaws. Either way, of course I wouldn't want the world to be fair, if it was, it would be a complete shithole, especially for me.
Do whatever you want, you're the only one who owns yourself.
That means, yes, you're free to go out and shoot up strangers if you want. But you gotta consider that there will be millions in your own country alone who wouldn't agree with ya, and that will get you in jail or killed. But as long as you're aware of those circumstances and still want to do it, who am I to tell you what to do? Go for it, just don't expect to escape afterward.
That's about it. Be responsible for your actions, because I'm sick of people whining and blaming their own problems on unrelated things. I'm absolutely cool with you doing crack, but don't come back and whine to me when you get addicted and die. You've made your choice, and you're responsible for yourself. So, uh, familiarize yourself with all the factors before you make your choice - if you're okay with all the negatives, proceed. If you're not, don't try to sugar coat them.
Laws are just tools that usually tend to help you keep a society intact. Nothing more, nothing less. A lot of those laws are bloody stupid. And that's why I dislike the so called "lawful" alignment. Laws aren't forever. Laws are something one can and should be able to change whenever they aren't beneficial. If you adhere to some kind of "lawful" alignment, you better follow every law including ones that are absolutely retarded and based on idiotic ideas, just because they are laws. Fuck that.
You are responsible for all your decisions, and you're the only one who owns yourself.
(unless we go really into really deep sciencey stuff and discover that we don't have frewill, which is always a possibility) There is no big brother, no god, no devil, or any other weak excuse you can blame for your decisions.
That's about it.