Among those who pretended to be philosophers, there was a certain man
named Olympius. He lived in Alexandria, and for some time had been a
disciple of Ammonius. As he desired to succeed better than Plotinos,
he treated Plotinos with scorn, and developed sufficient personal
animosity against Plotinos to try to bewitch him by magical operations.
However, Olympius noticed that this enterprise was really turning
against himself, and he acknowledged to his friends that the soul of
Plotinos must be very powerful, since it was able to throw back upon
his enemies the evil practices directed against him. The first time
that Olympius attempted to harm him, Plotinos having noticed it, said,
"At this very moment the body of Olympius is undergoing convulsions,
and is contracting like a purse." As Olympius several times felt
himself undergoing the very ills he was trying to get Plotinos to
undergo, he finally ceased his practices.