Welcome to the forum Hand of God. I think there is an important truth in your post that others have overlooked: that morality is innately human and not the result of religion or any set rules. People have an instinct or a conscious need for morality and they create a system that is descriptive of that feeling they have. You mention that killing is not justifiable not because you were taught so but because you know so. The rule you have established was created to be descriptive of what you know--it wasn't prescribed by any religion. I think the lesson to be learned is that we need systems of morality and physical existence that are descriptive of what we know and not prescriptive of further thinking. I am sure that religions began in accord with the thoughts and feelings of their time--they provided people with a reality that people found both beautiful and believable. Eventually, though, they slowly lost that connection and became fixed systems which gained supremacy over the very things they were supposed to describe.