"WN: Couldn't someone just as easily argue that we ought to obey our base instincts, since we evolved that way?Dowd: That's where it's important to understand the direction of evolution. When we look at the pre-human world, then at human cultural evolution, we see greater spheres of cooperation, of complexity and interdependence at an ever-wider scale. At first we cooperated with family and clan; then at the level of tribe; then, later on, at the level of the kingdom; and now, at a planetary level. Our list of enemies keeps shrinking, and the people for whom we have cooperation and compassion keeps expanding. Why don't we go act on base instincts? Because it goes counter to this trajectory.[...]Dowd: God didn't stop communicating truth vital to human well-being thousands of years ago, when people preserved insights on animal skins. God communicates through science. Facts are God's native tongue. Who of us would let a first-century dentist fix our children's teeth? Yet every day we let first-century theologians fill our children's brains."Wired.com 12.05.07
The Revelation of Evolution!