Plotinos: Complete Works, v. 1 In Chronological Order,...

5. Others, again, insist that this is not the state of affairs. Their disposition depends on the circular movement of the heaven which governs everything, on the course of the stars, of their mutual relative position at the time of their rising, of their setting, of their zenith, or of their conjunction. Indeed, such are the signs on which are founded prognostications and predictions of what is to happen, not only to the universe, but also to each individual, both as to his fortunes and his thought. It is noticed that the other animals and vegetables increase or decrease according to the kind of sympathy existing between them and the stars, that all other things experience their influence, that various regions of the earth differ according to their adjustment with the stars, and especially the sun; that from the nature of these regions depend not only the character of the plants and animals, but also human forms, size, color, affections, passions, tastes, and customs. In this system, therefore, the course of the stars is the absolute cause of everything.