The definition which Apuleius gives of demons, and in which he of course includes all demons, is that they are in nature animals, in soul subject to passion, in mind reasonable, in body aerial, in duration eternal. Now in these five qualities he has named absolutely nothing which is proper to good men and not also to bad. For when Apuleius had spoken of the celestials first, and had then extended his description so as to include an account of those who dwell far below on the earth, that, after describing the two extremes of rational being, he might proceed to speak of the intermediate demons, he says, "Men, therefore, who are endowed with the faculty of reason and speech, whose soul is immortal and their members mortal, who have weak and anxious spirits, dull and corruptible bodies, dissimilar characters, similar ignorance, who are obstinate in their audacity, and persistent in their hope, whose labour is vain, and whose fortune is ever on the