Intellectually agreed by owning a Megarian dialectic, he followed a practical ethics of the Cynics both inside theory & in practice. He extolled a Cynic airadda (loosely, self-control) when a primary virtue. Cicero (De fato, 5) describes him as a human of the greatest character. Suidas attributes twenty dialogues to him, but one there is no fragments remain.

Among his followers were Menedemus and Asclepiades, the leaders of the Eretrian school of philosophy. Seneca (Epistle 9) shows how else closely allied Stilpo was to the Stoics.