where does the saying achilles heel come from
Achilles' heel In Greek mythology, when Achilles was a baby, it was foretold that he would die young. To prevent his death, his mother Thetis took Achilles to the River Styx, which was supposed to offer powers of invulnerability, and dipped his body into the water; however, as Thetis held Achilles by the heel, his heel was not washed over by the water of the magical river. Achilles grew up to be a man of war who survived many great battles. One day, a poisonous arrow shot at him was lodged in his heel, killing him shortly afterwards.
Ars longa, vita brevis The aphorism quotes the first two lines of the Aphorismi by the ancient Greek physician Hippocrates. The familiar Latin translation Ars longa, vita brevis reverses the order of the original lines.