Finally, he warns that this materialism must be "absolute, for we cannot allow a divine foot in the door". That final phrase points to what's really at stake in the evolution controversy. Why does Lewontin urge us to define science as applied materialism? Because otherwise we might let a "divine foot in the door." And we all know what happens then: When a salesman gets his foot in the door, pretty soon his brooms and brushes are all over your living room.

—Nancy Pearcey, Total Truth: Liberating Christianity from Its Cultural Captivity