Where do atheists get their morality from?

[Undeceived]

I thought the following library of essays might be of general interest to readers of this thread.

Infidels.org: (Modern Library)

As moral. As moral as theists, based on theistic morals? Where else might atheists get this standard of morality? From society, perhaps, which borrows almost exclusively from Christianity. Sure you can abide by Christianity's morals, and many atheists do. But by definition of evolution you have no objective morals. You are simply imitating culture to be accepted by culture. In the process, you validate Christian ethics as the most acceptable, tossing out one or two (such as adultery, abortion) to suit your own personal whims. Perhaps by 'having morals' you mean being generally good to other human beings. Yet according to evolution there is no good, just survival. Your 'good' is done out of self-interest. If you truly were altruistic, you'd contradict survival of the fittest. Why should anyone be impressed you can imitate out of self-interest? A monkey can do that. Moral atheism is an oxymoron unless the atheist defines a moral his own way. In such a case, what good is a subjective moral? Why should anyone be impressed that you can create your own idea of right and wrong? A monkey can do that too. Without altruism, ethics is just an act.