Petrizi treats the problem of the cause and the caused from various perspectives, for the treatment of this topic proved to be of fundamental importance for the logical structure of his philosophical project. In Proposition 30, he treats the traditional view of the dialectic of causality in detail, examining the etymological meanings of the terms characteristically used in Greek for this relationship (Petrizi, Opera II, prop. 30, pp. 79–81). The dialectic of causality becomes manifest in the process of the descent from the One to the Many and the ascent from the Many to the One. The cause is the phase within the entirety of emanation that generates, that which thus has priority both in ontological and in axiological terms vis-à-vis the caused inasmuch as in the neo-Platonic system of generation the generator is better than the generated.