Next come an altar of Concord, another of Athena, and the altar of the Mother of the gods. Quite close to the entrance to the stadium are two altars; one they call the altar of Hermes of the Games, the other the altar of Opportunity. I know that a hymn to Opportunity is one of the poems of Ion of Chios
; in the hymn Opportunity is made out to be the youngest child of Zeus. Near the treasury of the Sicyonians is an altar of Heracles, either one of the Curetes or the son of Alcmena, for both accounts are given.