 In the exchange of publications that grew out of the Dissertation, Arnauld objects in a similar way to Malebranche’s use of occasionalism to explain “how grace acts in us without wounding [liberty]” (OM, 5, 8). In his explanation, Malebranche distinguishes the effect of grace, which is from God and is not free, from the recipient’s free response, which is from the recipient and not from God. Arnauld says that Malebranche would have done well to heed Aquinas’s advice that one should not distinguish “between what is from grace and what is from free will, as if the same thing could not be from both” (OA, 39, 114).