Hermes, God of Commerce and Trading, shrewd and cunning, who started thieving before he was a day old when He stole Apollo's cattle. He is the messenger of Zeus and heralds of the gods. To him is ascribed the introduction of the sending of embassies to sue for peace. Hermes, the robber and cattle driver, the prince of tricksters, the thief at the gates, the bringer of dreams, the patron of travelers, is also the governor of the tongue, and the guide of intelligent speech. Hermes is called Argiphontes, for having killed the All-seeing Argus who guarded Io, and Psychopompus for being the guide of souls to the Underworld.