In a recent essay Duncan Pritchard argues that there is no fundamental epistemological distinction between religious belief and ordinary or non-religious belief. Both of them – so he maintains in the footsteps of Wittgenstein's On certainty – are ultimately grounded on a-rational commitments, namely, commitments unresponsive to rational criteria. I argue that, while this view can be justified theologically, it cannot be advanced philosophically as Pritchard assumes.I offer an account of Aquinas's reflection on faith and reason to show that the (...) theologian – not the philosopher – is entitled to deal with a-rational commitments, because the truths of faith can be seen as simply intellectual – like the rational statements considered by the philosopher – but also as decisions made by way of divine grace. I also suggest that Pritchard's thesis may be re-proposed on a new basis, if Aquinas's theological stance were reinterpreted so as to point out unexpected connections between theology and philosophy. (shrink)