If it looks like a duck, and quacks like a duck, we have at least to consider the possibility that we have a small aquatic bird of the family anatidae on our hands.
Thou shall not kill. Thou shall not commit adultery. Don't eat pork. I'm sorry, what was that last one? Don't eat pork? Is that the word of God, or is that pigs trying to outsmart everybody?
Please, if you ever see me getting beaten up by the police, please put your video camera down and help me.
What I just said is the fundamental, end-all, final, not-subject-to-opinion absolute truth, depending on where you're standing.