Plutarch Antony 66

[1] Though the struggle was beginning to be at close range, the ships did not ram or crush one another at all, since Antony’s, owing to their weight, had no impetus, which chiefly gives effect to the blows of the beaks, while Caesar’s not only avoided dashing front to front against rough and hard bronze armour, but did not even venture to ram the enemy’s ships in the side.

[2] For their beaks would easily have been broken off by impact against vessels constructed of huge square timbers fastened together with iron. The struggle was therefore like a land battle; or, to speak more truly, like the storming of a walled town. For three or four of Caesar’s vessels were engaged at the same time about one of Antony’s, and the crews fought with wicker shields and spears and punting-poles and fiery missiles; the soldiers of Antony also shot with catapults from wooden towers.

[3]
  And now, as Agrippa was extending the left wing with a view to encircling the enemy, Publicola was forced to advance against him, and so was separated from the centre. The centre falling into confusion and engaging with Arruntius, ¹ although the sea-fight was still undecided and equally favourable to both sides, suddenly the sixty ships of Cleopatra were seen hoisting their sails for flight and making off through the midst of the combatants; for they had been posted in the rear of the large vessels, and threw them into confusion as they plunged through.

[4] The enemy looked on with amazement, seeing that they took advantage of the wind and made for Peloponnesus. Here, indeed, Antony made it clear to all the world that he was swayed by the sentiments neither of a commander nor of a brave man, nor even by his own, but, as someone in pleasantry said that the soul of the lover dwells in another’s body, he was dragged along by the woman as if he had become incorporate with her and must go where she did.

[5] For no sooner did he see her ship sailing off than he forgot everything else, betrayed and ran away from those who were fighting and dying in his cause, got into a five-oared galley, where Alexas the Syrian and Scellius were his only companions, and hastened after the woman who had already ruined him and would make his ruin still more complete.