Subject: No connection.
Author:
Posted on: 2015-06-28 18:31:00 UTC
Consider the following logical chain:
Postulate 1: I, from a selfish point of view, do not want to be murdered.
Postulate 2: Other people, from their own selfish points of view, do not want to be murdered, either.
Postulate 3: People consider fair agreements ethical.
Postulate 4: Equivalent exchange is fair.
Therefore: proposing an agreement roughly equivalent to "I won't murder you if you won't murder me" is equivalent exchange, which is fair, which is ethical.
And there you have it, morality based on some observations and a selfish agreement that serves the interests of both parties without any God (or, as I like to call it when philosophical questions are involved, System-External Problem-Solving Factor) nor any connection to evolution. This is, admittedly, a very poor version — it's not very thought-through or explained, and partially cannibalised from what Epicurus said in his Principal Doctrines — but I think it serves to illustrate my point.
PS: Apropos Epicurus, you might want to take a look at this, which is also, coincidentally, another reason why I tend to find religions not very philosophically rigorous.
PPS: If you need God to say that 'murder is wrong', it's tantamount to admitting that without God you'd be a murdering savage — you admit that you need Big Brother to be ethical.