That's justice. You murder another human being, you pay with your own.
Retribution as a moral principle is incompatible with a scientific view of human behaviour.
I'm anxious to read the rest of this thread and see if any evols comment negatively about Dawkins attempt to blend his moral views with science.
Don't hold yer breath.
If the purpose in life is to direct ones future evolution, and people are nothing more then intellectual animals, then
there is no difference to helping an elderly lady across the street, or running her over because she is "unfit".
Our conscience tells us otherwise, there are Laws are written on our conscience. Objective value, what makes a hero a hero, or a villian a villan, the laws written on our heart imply a Lawgiver.