ἐν πίθῳ τὴν κεραμείαν μανθάνειν → in breaking many pots, the potter learns his craft | of those who undertake the most difficult tasks without learning the elements of the art | don't run before you can walk
Sthenelus.—(1) son of Capaneus, and one of the Epigoni (‘Descendants’) who took Thebes, companion of Diomed, Il. 2.564, Il. 4.367 ff., Il. 23.511, Il. 9.48.—(2) son of Perseus and Andromeda, father of Eurystheus, Il. 19.116, 123.