Phineus

His second wife, Idaea, daughter of the Scythian king Dardanus[15] (less commonly Dia,[16] Eidothea, sister of Cadmus,[17] or Eurytia[18]), deceived him into blinding these sons, a fate Phineus himself would suffer.

[23] Apollo was said to have given the gift of prophecy to Phineus,[24] but the latter's own blinding was variously attributed to the outrage against his sons,[25] his giving Phrixus directions on his journey,[26] or because he preferred long life to sight,[27] or, as reported in the Argonautica (thus the best-known version), for revealing the future to mankind.

[29] According to scholia on the Odyssey, when asked by Zeus if he preferred to die or lose sight as punishment for having his sons killed by their stepmother, Phineus chose the latter saying he would rather never see the sun, and consequently it was the scorned Helios who sent the Harpies against him.

[35] Zetes demurred, fearing the wrath of the gods should they deliver Phineus from divine punishment, but the old seer assured him that he and his brother Calais would face no retribution.

[39] Phineus then revealed to the Argonauts the path their journey would take and informed them how to pass the Symplegades safely, thus partially filling the same role for Jason that Circe did for Odysseus in the Odyssey.