You: All good may not come from God. Perhaps good comes from the fact that there is no all-powerful being in the universe to shift the laws of physics and human action around at his whim, or that it comes from the natural tendency towards organization and self-preservation among humans. You give me no reason to assume that it comes from an all-powerful, all-good God.

Aaron: Your answer shows a surprising lack of understanding of both physics and human nature. Since you know so little about these subjects, I will abort this line or reasoning and switch to a simpler one.