Plutarch's Platonic questions (5.4-6.1)

But observe whether this be not true, that no circle

or sphere in this world is exact; but since by the tension and circumtension of the right lines, or by the minuteness of the parts, the difference disappears, the figure seems circular and round. Therefore no corruptible body moves circularly, but altogether in a right line. To be truly spherical is not in a sensible body, but is the element of the soul and mind, to which he has given circular motion, as being agreeable to their nature.

HOW COMES IT TO PASS THAT IN PHAEDRUS IT IS SAID, THAT THE NATURE OF A WING, BY WHICH ANY THING THAT IS HEAVY IS CARRIED UPWARDS, PARTICIPATES MOST OF THE BODY OF GOD?[*]

Is it because the discourse is of love, and love is of beauty inherent in a body? Now beauty, by similitude to things divine, moves and reminds the soul. Or it may be (without too much curiosity) he may be understood in plain meaning, to wit, that the several faculties of the soul being employed about bodies, the power of reasoning and understanding partakes most about divine and heavenly things; which he did not impertinently call a wing, it raising the soul from mean and mortal things to things above.