128 Poets say these things in sport, and philosophers blame them and at the same time they imagine that those very things are true of the dead which they consider fictitious as regards the living. For they who invented such tales did not intend to assert the truth of their own fable, but to deride the errors of philosophers, who think that that same soul which was accustomed to overcome anger by gentle and lowly purpose, can now, inflamed by the raging impulses of a lion, impatient with anger and with unbridled rage, thirst for blood and seek for slaughter.
Or again, that that soul, which as it were by royal counsel used to moderate the various storms of the people, and to calm them with the voice of reason, can now endure to howl in pathless and desert places after the fashion of a wolf; or that that soul which, groaning under a heavy burden, used to low in sad complaint over the labours of the plough, now changed into the fashion of a man, seeks for horns on his smooth brow; or that another, which used of old to be borne aloft on rapid wing to the heights of heaven, now thinks of flight no longer in its power, and mourns that it grows sluggish in the weight of a human body.
Source: On the Death of Satyrus (New Advent)