Plutarch Antony 33

[1] After this settlement, Antony sent Ventidius on ahead into Asia to oppose the further progress of the Parthians, while he himself, as a favour to Caesar, was appointed to the priesthood of the elder Caesar; ¹ everything else also of the most important political nature they transacted together and in a friendly spirit. But their competitive diversions gave Antony annoyance, because he always came off with less than Caesar.

[2] Now, there was with him a seer from Egypt, one of those who cast nativities. This man, either as a favour to Cleopatra, or dealing truly with Antony, used frank language with him, saying that his fortune, though most great and splendid, was obscured by that of Caesar; and he advised Antony to put as much distance as possible between himself and that young man. For thy guardian genius, said he, is afraid of his; and though it has a spirited and lofty mien when it is by itself, when his comes near, thine is cowed and humbled by it.

[3] And indeed events seemed to testify in favour of the Egyptian. For we are told that whenever, by way of diversion, lots were cast or dice thrown to decide matters in which they were engaged, Antony came off worsted. They would often match cocks, and often fighting quails, and Caesar’s would always be victorious.
  At all this Antony was annoyed, though he did not show it, and giving rather more heed now to the Egyptian, he departed from Italy, after putting his private affairs in the hands of Caesar; and he took Octavia with him as far as Greece (she had borne him a daughter).

[4] It was while he was spending the winter at Athens that word was brought to him of the first successes of Ventidius, who had conquered the Parthians in battle and slain Labienus, as well as Pharnapates, the most capable general of King Hyrodes. To celebrate this victory Antony feasted the Greeks, and acted as gymnasiarch for the Athenians. He left at home the insignia of his command, and went forth carrying the wands of a gymnasiarch, in a Greek robe and white shoes, and he would take the young combatants by the neck and part them.