Human beings have the capability of good and evil, that's a better way to put it, how and why they tend to use these capabilities defines them. It's what the religions have tried to say, when you are free of this good and bad, of these differences. That's when you see everything as they are. You become a mirror and by reflecting everything (as they are) inside yourself you know their truth. It's a rather easy concept yet human beings keep struggling to know it.