Cicero to Trebianus, written from the Tusculan villa in early June 45 BC (works.yaml -0045-06-15 at month-precision; the Perseus dateline reads in Tusculano in.~m.~Iun.~a.~709 (45), “at the beginning of the month of June” — a tightening to circa $-0045$-$06$-$01$ is plausible, but month-precision covers it). This is the companion piece to Fam.~6.10 of nearly a year before, the case now closed: Trebianus has been restored, the intervention of Dolabella has carried the day, and Cicero writes from Tusculum a short letter of congratulation and Stoic stocktaking.

No Greek. The register lightens after the long working note of 6.10: Dolabella has done what Cicero himself could not quite do, and Cicero is unembarrassed to mark the debt. The philosophical pivot in section~2 is the standard consolatio-flipped-into-thanksgiving turn of Book~6 — the recovered dignitas now matters more than the lost res familiaris, and even property would only be the sweeter to enjoy “if there were any commonwealth left”. The parenthetical greeting to Siro the Epicurean (in whose Naples-bay circle Virgil and Varius were just then reading philosophy) is the unobtrusive marker of how thin the line is, in this cluster, between consolatory Stoicism and an Epicurean refuge of letters and friends.

One crux: in section~1 the Perseus text carries a dagger at nec enim acciderat mihi $$opus esse; I have rendered the sense as “for it had never fallen out that I had occasion to need him,” following the standard supplement (mihi <eo> opus esse or similar). The line of thought is secure even if the precise words are not.