And since they chose to defend their allies against them by negociation rather than by arms, that they on their part would not reject the pacific terms which they propose, if the Clusians would give up to the Gauls in want of land, a portion of their territories which they possessed to a greater extent than they could cultivate; otherwise peace could not be obtained: that they wished to receive an answer in presence of the Romans; and if the land were refused them, that they would decide the matter with the sword in presence of the same Romans; that they might have an opportunity of carrying home an account how much the Gauls excelled all other mortals in bravery.

On the Romans asking what right they had to demand land from the possessors, or to threaten war [in case of refusal], and what business the Gauls had in Etruria, and on their fiercely replying, that they carried their right in their swords, that all things were the property of the brave, with minds inflamed on both sides they severally have recourse to arms, and the battle is commenced.
Here, fate now pressing hard on the Roman city, the ambassadors, contrary to the law of nations, take up arms; nor could this be done in secret, as three of the noblest and bravest of the Roman youth fought in the van of the Etrurians; so conspicuous was the valour of the foreigners.

Moreover Quintus Fabius, riding out beyond the line, slew a general of the Gauls who was furiously charging the very standards of the Etrurians, having run him through the side with his spear: and the Gauls recognised him when stripping him of his spoils; and a signal was given throughout the entire line that he was a Roman ambassador.

Giving up therefore their resentment against the Clusians, they sound a retreat, threatening the Romans.

Some gave it as their opinion that they should proceed forthwith to Rome.