quote:
but why does science exclude homo sapiens from conducting such behaviour?
It doesn't. Where did you get the impression that it does? Our moral sense does that (or not, depending on which society you are talking about).
Science is starting to understand where moral senses come from, which is an interesting topic in itself.
Are you asking, underneath this,
Why should I behave morally if I am an atheist?
If so, my answer is :-
- Morals do not derive from God. Morals are human creations, which some people project onto their image of God. But this is completely backwards. Gods are created in our minds as ideal moral beings - based on our own morals, or in some cases by the need of the rulers of societies to determine how their members behave. No insult necessarily intended to these codes, btw. The moral code espoused by Jesus is superb. The moral code espoused by the old testament God, however, is appalling by modern standards and one of the reasons I reject Christianity.
- We can see this because atheist individuals and secular societies are as moral as religious ones. Love is as important to atheists in general as it is to Christians in general, for example.
- In fact, it seems bizarre to me as a European to see the behaviour of the evangelical right in the US - who as a political movement are rich (condemned repeatedly by Jesus), uncompassionate (condemned repeatedly by Jesus), dishonest (condemned by Jesus) and punitive (condemned by Jesus).
If not, sorry for taking you off-topic