 There is a continuing discussion of Arnauld’s attitude toward the view which Descartes expressed in answer to Mersenne’s question “by what kind of causality God established the eternal truths.” Descartes replied, “by the same kind of causality as he created all things, that is to say, as their efficient and total cause” (Descartes, p.  25).[11]  The debate has been greatly influenced by Jean-Luc Marion’s interpretation, in La théologie blanche de Descartes, according to which Descartes’ position on the matter is fundamental to his metaphysics. Consequently, to the extent that Arnauld, in his mature writings, adopted Descartes’ metaphysics, it has seemed reasonable to say that Arnauld agreed with Descartes about “the creation of the eternal truths.” Indeed Denis Moreau says, “Arnauld is therefore one of the rare (and if we can grant him the adjective, the only great) post-Cartesian to accept the thesis of the creation of the eternal truths” (Moreau, 1999, p. 180).