Full Idea
The dynamicon or power [potentia] in bodies is twofold, passive and active. Passive force [vis] constitutes matter or mass [massa], and active force constitutes entelechy or form.
Gist of Idea
Power is passive force, which is mass, and active force, which is entelechy or form
Source
Gottfried Leibniz (On Body and Force, Against the Cartesians [1702], p.252)
Book Reference
Leibniz,Gottfried: 'Philosophical Essays', ed/tr. Arlew,R /Garber,D [Hackett 1989], p.252
A Reaction
This is explicitly equating the innate force understood in physics with Aristotelian form. The passive force is to explain the resistance of bodies. I like the equation of force with power. He says the entelechy is 'analogous' to a soul.