Your required reading for today is Jerry Coyne’s essay in the USA Today. His topic? Where morality comes from if not from God. Here’s an excerpt:
So where does morality come from, if not from God? Two places: evolution and secular reasoning. Despite the notion that beasts behave bestially, scientists studying our primate relatives, such as chimpanzees, see evolutionary rudiments of morality: behaviors that look for all the world like altruism, sympathy, moral disapproval, sharing — even notions of fairness. This is exactly what we’d expect if human morality, like many other behaviors, is built partly on the genes of our ancestors.
And the conditions under which humans evolved are precisely those that would favor the evolution of moral codes: small social groups of big-brained animals. When individuals in a group can get to know, recognize and remember each other, this gives an advantage to genes that make you behave nicely towards others in the group, reward those who cooperate and punish those who cheat. That’s how natural selection can build morality. Secular reason adds another layer atop these evolved behaviors, helping us extend our moral sentiments far beyond our small group of friends and relatives — even to animals.
Should we be afraid that a morality based on our genes and our brains is somehow inferior to one handed down from above? Not at all. In fact, it’s far better, because secular morality has a flexibility and responsiveness to social change that no God-given morality could ever have.
Good stuff! Now go read the rest.