A scientist and non-believer, de Waal isn't saying here that religion is required for human morality, only that the two have been entwined throughout human history. Since I have wearied of the Richard Dawkins school of religion-bashing, in which belief is equated with dim-wittedness, I can only applaud de Waal's approach, as when he writes, "The enemy of science is not religion. Religion comes in endless shapes and forms ... . The true enemy is the substitution of thought, reflection, and curiosity with dogma."

- Frans de Waal's Bottom-Up Morality: We're Not Good Because Of God