To the OP: I can tell right from wrong because I have a brain capable of logic, reason, and deduction. Imagine the earliest men on earth. One day one
gets mad at the other, and shoves a spear through his throat. At first he's satsified, but then he shortly realizes that there's one less person
hunting,defending, and in general carrying their own weight. He and other people in his little tribe will suffer because their numbers are weakened.
So the next time he goes to shove a spear through somebodies throat, maybe he'll think twice. And maybe the other people in this tribe saw this
happen and noted the effect. Don't kill people because the effect it has on you may not be good. No God or religion required.Understanding cause and
effect and pattern recognition are typical basic human functions, and have been around longer than religion.

