Philosophical naturalists often take relativistic views on ethics. Yet, there seems to be one ethical area about which they are absolutists, and that is the ethics of belief. They say with Clifford "It is wrong always, everywhere, and for anyone, to believe anything upon insufficient evidence." In fact, to some of them, this seems to be more obviously true than "It is wrong, always and everywhere, and for anyone, to inflict pain on little children for your own amusement."
I don't understand this.