The same sentence (Dexippus FGrH 100 F37) is quoted with significant differences at alpha 3292. There, what serves as the headword phrase in this entry, eu)qarsw=s e)pnei, is rendered as eu)qarsw=s e)ph|/ei ("he attacked courageously"). Also, the phrase translated here as "from his experience" (e)k th=s pei/ras) does not appear in the other entry.
On Dexippus, a third-century CE orator and historian, see generally delta 237.