Some of these mathematicians were influential in arranging the Elements that Euclid later published. In addition to his commentaries, Proclus wrote two major systematic works. The "Elements of Theology" (Στοιχείωσις θεολογική) consists of 211 propositions, each followed by a proof, beginning from the existence of the One (divine Unity) and ending with the descent of individual souls into the material world. The "Platonic Theology" (Περὶ τῆς κατὰ Πλάτωνα θεολογίας) is a systematisation of material from Platonic dialogues, showing from them the characteristics of the divine orders, the part of the universe which is closest to the One. We also have three essays, extant only in Latin translation: "Ten doubts concerning providence" ("De decem dubitationibus circa providentiam"); "On providence and fate" ("De providentia et fato"); "On the existence of evils" ("De malorum subsistentia"). He also wrote a number of minor works, which are listed in the bibliography below. Proclus's system, like that of the other Neoplatonists, is a combination of Platonic, Aristotelian, and Stoic elements. In its broad outlines, Proclus's system agrees with that of Plotinus. However, following Iamblichus, Plutarch of Athens, and his master Syrianus, Proclus presents a much more elaborate universe than Plotinus, subdividing the elements of Plotinus's system into their logically distinct parts, and positing these parts as individual things. This multiplication of entities is balanced by the monism which is common to all Neoplatonists. What this means is that, on the one hand the universe is composed of hierarchically distinct things, but on the other all things are part of a single continuous emanation of power from the One. From this latter perspective, the many distinctions to be found in the universe are a result of the divided perspective of the human soul, which needs to make distinctions in its own thought in order to understand unified realities. The idealist tendency is taken further in John Scotus Eriugena. There is a double motivation found in Neoplatonic systems. The first is a need to account for the origin and character of all things in the universe.