" Hume does not, then, defend his view by using his reason: it is rather his happy acceptance of the upshot of the balance between his philosophical reflections and the psychological propensities of his nature. This underlying attitude guides his life and regulates his outlook on society and the world. And it is this attitude that leads me to refer to his view as a fideism of nature. (See T:179, 183, 184, 187.) "

― John Rawls , Lectures on the History of Moral Philosophy