[1] It was in this mansion, the most superb in all Rome, that his intimate friend, Publius Quintius Scapula, suddenly expired while at supper with Gallus.
[4] In Cicero's work, Topica, a treatise which was published in 44 BCE, Gallus is spoken of in the past tense, as no longer living.
Cicero himself resorted for legal advice to his friend, although, in a question relating to water rights, he says that he preferred consulting Marcus Tugio, an otherwise unknown jurist who had devoted exclusive attention to that branch of the law.
[10] Gallus, on the other hand, when he was consulted on questions which involved controverted facts rather than legal doubts, used to refer his clients for advice and assistance to Cicero, as the great orator and skillful advocate.
[13] He is similarly loosely quoted by Marcus Antistius Labeo,[14] by Sextus Caecilius Africanus,[15] by Quintus Cervidius Scaevola,[16] by Licinius Rufinus,[17] by Javolenus,[18] by Florentinus,[19] by Paulus,[20] and by Ulpian.
[21] This unspecific mode of quotation shows that his original works were not generally available, and the same inference may be deduced from the silence of the old grammarians, who have nothing to say on the usage of words by citations from Aquillius Gallus.
His authority, however, is invoked by the 1st-century rhetorician Dionysius of Halicarnassus, for the statement that, on one occasion, when the sewers were out of repair, the censors agreed to pay 100 talents for their cleansing.