  According to Du Châtelet, the PSR positively rules out extending attraction to account for the nature of matter. How so? The argument seems to be that if attraction (as some sort of active principle or force) were to be inherent in bodies, then bodies would always move, and yet bodies always moving is contrary to our experience of the physical world. There is no sufficient reason—an inherent passive principle within bodies, for example, to counteract the active force—to account for the brute fact that bodies are also sometimes at rest. So attraction cannot be an inherent property of matter (c.f.  IP Avant-propos VII). Yet for attraction to explain the cohesion of bodies, it would need to be an inherent property. So attraction cannot be employed as the cause of the cohesion of bodies.