THE SOUL OBEYS FATE ONLY WHEN EVIL. 10. The conclusion of our discussion is that while everything is indicated and produced by causes, these are of two kinds: First the human soul, and then only exterior circumstances. When the soul acts "conformably to right reason" she acts freely. Otherwise, she is tangled up in her deeds, and she is rather "passive" than "active." Therefore, whenever she lacks prudence, the exterior circumstances are the causes of her actions; one then has good reason to say that she obeys Fate, especially if Fate is here considered as an exterior cause. On the contrary, virtuous actions are derived from ourselves; for, when we are independent, it is natural for us to produce them. Virtuous men act, and do good freely. Others do good only in breathing-spells left them in between by their passions. If, during these intervals, they practice the precepts of wisdom, it is not because they receive them from some other being, it is merely because their passions do not hinder them from listening to the voice of reason. As the first book seemed Platonic, and the second Numenian, so this third one seems called forth by the practical opposition of astrologers or Gnostics. Later in life, his thirty-third book, ii. 9, was to take up again this polemic in more extended form. This chronologic arrangement of Plotinos's first three books reveals his three chief sources of interest--devotion to Plato, reliance on Numenius, and opposition to the Gnostics and astrologers. FOURTH ENNEAD, BOOK FIRST. Of the Being of the Soul.