Platonicae quaestiones

Plutarch

Plutarch. Plutarch's Morals, Vol. V. Goodwin, William W., editor; Brown, R., translator. Boston: Little, Brown, and Company; Cambridge: Press of John Wilson and Son, 1874.

IN WHAT SENSE DOES PLATO SAY, THAT THE ANTIPERISTASIS (OR REACTION) OF MOTION—BY REASON THERE IS NO VACUUM—IS THE CAUSE OF THE EFFECTS IN PHYSICIANS’ CUPPING-GLASSES, IN SWALLOWING, IN THROWING OF WEIGHTS, IN THE RUNNING OF WATER, IN THUNDER, IN THE ATTRACTION OF THE LOADSTONE, AND IN THE HARMONY OF SOUNDS?[*](See Timaeus, pp. 79-81.)

For it seems unreasonable to ascribe the reason of such different effects to the selfsame cause.