Ponzinibio's views soon came under attack by witch-phobic theologians like the Dominican Silvestro Mozzolino of Prierio (later Dominican General) who in 1521 published a work that did not attempt to defy the canon "Episcopi" but stating his opinion that to deny the real power of witchcraft would be "to discredit the infinite number of cases tried by the Inquisition, and consequently to discredit the laws themselves."