On Anger is an ethical treatise by the Epicurean philosopher Philodemos of Gadara, composed in Koine Greek during the 1st century BCE. It survives in a single carbonised roll, P.Herc. 182, recovered from the Villa of the Papyri at Herculaneum, and it reaches the present in fragments: the text held here comprises 17 dislocated fragments and 50 columns, with frequent loss at the level of the line. The public-domain substrate is Wilke's 1914 Teubner edition, read against Indelli's 1988 edition as base text; the Armstrong–McOsker edition of 2020 remains in copyright, so the site keeps the letters actually surviving on the roll and marks the modern editor's conjectural supplements as lacunae.
The surviving columns take up anger, as a an agitation in the person who feels it. The opening fragment transmits a school definition of anger as pain, tied to the drive to retaliate, and the greater part of the roll asks whether the the sage, can fall into anger at all, or whether every onset of it brings harm, to its bearer. One locus is aligned with SVF III.470, which places the roll among the papyrus sources behind the dossier on the early Stoa. Because whole stretches of the columns remain illegible or lost, the order of the argument and the overall shape of the treatise cannot be stated with confidence.
The text of this work is not published here yet.