notwithstanding, both men maintained that it was unreasonable to believe in miracles. There is, however, an important difference. For Spinoza, miracles are actually impossible; for Hume, they are merely incredible. Hume’s Empirical Skepticism Hume believes that “all the objects of human reason or inquiry may naturally be divided into two kinds, to wit, ‘Relations of Ideas,’ and ‘Matters of Fact.’”2 The first kind includes mathematical statements and definitions; the second includes everything known empirically,