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... quodsi me lyricis vatibus inseres, sublimi feriam sidera...

Distinguish "insero, -ere, -evi, -itum," "sow, plant, graft, from "insero, -erere, -ui, -tum," "put, thrust in, insert," the meaning here. The precise meaning according to the OLD is "insert (in a class or category), class among," OLD 3c.