The play about a mythological sequence, thereby places the maxim within the context of Greek mythology. In this play, the demi-god Prometheus first rails at the Olympian gods, and against what he believes to be the injustice of his having been bound to a cliffside by Zeus, king of the Olympian gods. The demi-god Oceanus comes to Prometheus to reason with him, and cautions him that he should "know thyself".[20] In this context, Oceanus is telling Prometheus that he should know better than to speak ill of the one who decides his fate and accordingly, perhaps he should better know his place in the "great order of things."