Qualities, therefore, are everything that, instead of being actualizations and forms of beings, are only its accidents, and only reveal its shapes. We will therefore call qualities the habituations and the dispositions which are not essential to substances. The archetypes (or models) of qualities are the actualizations of the beings, which are the principles of these qualities. It is impossible for the same thing at one time to be, and at another not to be a quality. What can be separated from being is quality; what remains united to being is being, form, and actualization. In fact, nothing can be the same in itself, and in some other condition where it has ceased to be form and an actualization. What, instead of being the form of a being, is always its accident, is purely and exclusively a quality. FIFTH ENNEAD, BOOK SEVEN. Do Ideas of Individuals Exist? TWO POSSIBLE HYPOTHESES OF IDEAS OF INDIVIDUALS. 1. Do ideas of individuals (as well as of classes of individuals), exist? This means that if I, in company with some other man, were to trace ourselves back to the intelligible world, we would there find separate individual principles corresponding to each of us. (This might imply either of two theories.) Either, if the individual named Socrates be eternal, and if the soul of Socrates be Socrates himself, then the soul of each individual is contained in the intelligible world. Or if, on the contrary, the individual named Socrates be not eternal, if the same soul can belong successively to several individuals, such as Socrates or Pythagoras, then (as Alcinoous, e. g., and other Platonists insist), each individual does not have his idea in the intelligible world. THE FIRST (NON-PLATONIC) HYPOTHESIS ALONE RIGHT. If the particular soul of each man contains ("seminal) reasons" of all the things she does, then each individual corresponds to his idea in the intelligible world, for we admit that each soul contains as many ("seminal) reasons" as the entire world. In this case, the soul would contain not only the ("seminal) reasons" of men but also those of all animals, the number of these reasons will be infinite, unless (as the Stoics teach) the world does not re-commence the identical series of existences in fixed periods; for the only means of limiting the infinity of reasons, is that the same things should reproduce themselves. DIFFERENCE OF THINGS DEPEND ON THEIR SEMINAL REASONS.