Note 1333 — PERSIUS.
Lewis Evans translation
Incoctum a metaphor from a fleece double-dyed. So Seneca, "Quemadmodum lana quosdam colores semel ducit, quosdam nisi sæpius macerata et recocta non perbibit: sic alias disciplines ingenia cum accepere, protinus præstant: hæc nisi altè descendit, et diù sedit, animum non coloravit, sed infecit, nihil ex his quæ promiserat præstat." Ep. 71. Cf. Virg., Georg., iii., 307, "Quamvis Milesia magno vellera mutentur Tyrios incocta rubores."