Gregory W. Dawes

History and the modern sciences are characterized by what is sometimes called a methodological naturalism that disregards talk of divine agency. Some religious thinkers argue that this reflects a dogmatic materialism: a non-negotiable and a priori commitment to a materialist metaphysics. In response to this charge, I make a sharp distinction between procedural requirements and metaphysical commitments. The procedural requirement of history and the sciences—that proposed explanations appeal to publicly-accessible bodies of evidence—is non-negotiable, but has no metaphysical implications. The metaphysical commitment is naturalistic, but is both a posteriori and provisional, arising from the fact that for more than 400 years no proposed theistic explanation has been shown capable of meeting the procedural requirement. I argue that there is nothing to prevent religious thinkers from seeking to overturn this metaphysically naturalistic stance. But in order to do so they would need to show that their proposed theistic explanations are the best available explanations of a range of phenomena. Until this has been done, the metaphysical naturalism of history and the sciences remains defensible

Colin Cheyne has argued that under certain circumstances an internalist or deontological theory of epistemic justification will give rise to a paradox. The paradox, he argues, arises when a principle of epistemic justification is both justifiably believed (in terms of the theory) and false. To avoid this paradox, Cheyne recommends abandoning the principle of justification-transference, which states that acts of believing made on the basis of a justifiably-believed principle are themselves justified. Since such a principle seems essential to any internalist theory of justified believing, internalist theories may also need to be abandoned. I argue that while some theories of epistemic justification may indeed give rise to this paradox, an internalist or deontological theory of subjective justification will avoid it. The reason for this is that a false principle of justified believing does not render acts of believing subjectively unjustified, provided that the agent does not realize that the principle is false.

In this timely study, Dawes defends the methodological naturalism of the sciences. Though religions offer what appear to be explanations of various facts about the world, the scientist, as scientist, will not take such proposed explanations seriously. Even if no natural explanation were available, she will assume that one exists. Is this merely a sign of atheistic prejudice, as some critics suggest? Or are there good reasons to exclude from science explanations that invoke a supernatural agent? On the one hand, Dawes concedes the bare possibility that talk of divine action could constitute a potential explanation of some state of affairs, while noting that the conditions under which this would be true are unlikely ever to be fulfilled. On the other hand, he argues that a proposed explanation of this kind would rate poorly, when measured against our usual standards of explanatory virtue.