 In “Eclaircissement XV,” Malebranche responds to the scholastic point that occasionalism renders scientific explanation impossible by appealing to the fact that God is not an arbitrary agent, but acts in accord with His wisdom. This wisdom dictates that He act “almost always” by means of a “general and efficacious will.” Such a will produces effects that are perfectly law-like. For instance, God acts by a general will in producing changes in bodies in accord with the law of the communication of motion. Malebranche did allow that God can produce miracles by “particular volitions” that are not law-like. However, he emphasizes that there are relatively few such volitions in God. Thus, we can offer scientific explanations that appeal to the laws of motion that reflect the nature of God’s general will.