Although then the limits of our discourse are reached in the above, I would yet, if you will allow me, raise a few points in connexion with the Fates and with destiny, in order to ascertain what aim his work has in view, when throughout its argument it sets itself to demolish our responsibility, and to substitute for it necessity, and destiny and the Fates. For in this way we shall finally and completely refute the tenets professed by the author and prove their falsity. If then, according to the views of true philosophy, every soul is immortal, for that which is perpetually moving is immortal, whereas that which moves another, and is itself moved by others, in admitting a cessation of its own movement, admits a cessation of life; and if responsibility depends on personal choice, and God is not responsible, then what reason is there for concluding that the nature, which is ever in movement, is actuated against its will, and not rather in accordance with its own choice and decision; for otherwise it would resemble a lifeless body in being moved by some outside agency, and would be as it were a puppet pulled by strings hither