"I don't intend to make a heterodox bishop if I know it," he said.
His heterodox opinions regarding the doctrine of the Trinity drew upon his works the condemnation of the church.
Essenism from the standpoint of Judaism was heterodox in two respects, the abandonment of animal sacrifices and the adoration of the sun.
Aristo of Chios and Herillus of Carthage, Zeno's heterodox pupils, Persaeus, his favourite disciple and housemate, the poet Aratus, and Sphaerus, the adviser of the Spartan king Cleomenes, are noteworthy minor names; but the chief interest centres about Zeno, Cleanthes, Chrysippus, who in succession built up the wondrous system.
His learning was greater than his originality, and he was one of the least heterodox of the Italian divines who rejected Roman Catholicism.