Are our ethical and moral rules simply a human manifestation of the instinct to survive? Is morality simply a ritualised set of behaviours centered around survival of the group or species?
Robert Heinlein suggests:
"Morals — all correct moral laws — derive from the instinct to survive. Moral behavior is survival behavior above the individual level.
Correct morality can only be derived from what man is — not from what do-gooders and well-meaning aunt Nellies would like him to be.
The basis of all morality is duty".
Is he right?