PPT Slide
Ancient & Medieval Philosophy -- David L. Rouse
For instance, in war, the sight of enemy forms wearing hostile array is so disturbing to the soul that often men flee in terror as if the coming danger were already present. The powerful habit induced by custom is displaced by the fear aroused by sight, which causes oblivion of what custom judges honorable and of the advantage derived from victory.
People who have seen a frightful sight have been driven out of their minds, so great is the power of fear; while many have fallen victims to useless toils, dreadful diseases and incurable insanity, so vivid are the images of the things seen which vision engraves on the mind.