Alright so warning this post is likely just a bunch of rubbish. I wrote it feeling proud of my intelligence then read it over and realized I'm just a stupid idiot who knows only here-say and assumptions, but if you like reading; have at it!*

Sorry but I speak best in examples and metaphor, so I'll try to explain it that way. (and I apologize if this gets a bit grizly but I don't else to prove my points, so that's that..)
I believe that just like the self, morals are a concept, which means on some level they're illusory, not real. But also; While it might not sound like it I pretty much agree with everything eva hermit said, well said points imo.
I'll quote eva hermit's post:
[If it harms others, or yourself, or both, it is wrong.
If it does not harm others, or yourself, or both, it is right.]
What about a situation where a person is shot with an arrow; to save them you must pull it out; harming them in the short term but saving them in the long run? What about every step we take which surely kills tiny creatures crawling around on the ground that we weren't even aware of? I realize that this is nitpicking and getting very technical but I think it's important. Important to realize that harm is unfortunately part of life and unavoidable in many cases.
I agree with every else said btw; it's the intent that matters. Having a harmful intent is immoral; where as having an intent not to cause harm (even if it is sometimes unavoidable) is "good".
In this way; sometimes "good" intentions or actions can actually cause harm or be evil. Didn't Hitler think he was doing good, by 'uniting mankind under one rule' (or trying to)? Did the Nazi's consider themselves evil? Not that I know of; they thought they were good, they thought they were in the right and it was the Jews that were evil.
And likewise a "bad" intention or action can actually do good.
-If two people are alone stranded on an island and the one is bitten by a poisonous spider and goes paralyzed; is under agony and can't eat, is most surely going to die; and asks you to kill them and put them out of their misery. Is it better to let them live for hours/days in torture and tremendous suffering? or commit murder and let them be at peace?
I'm not honestly certain of the answers to these questions and these are thankfully extreme examples that most of us never have to deal with. My only point is that it seems to me like we decide on some level (perhaps very deep) on what's right and wrong.
*Oh now I can see pride coming back to me in admitting how proud I was and shaming myself in my first statement, like everyone's gonna think better of me even though I said dumb things cause I admitted it was dumb and I was proud. Wow; I've gotta a loooong way to go..

Well maybe I shouldn't make posts like this? But again, its thanks to meditation, I think, that I at least realize these flaws now.