Vincent of Lerins vs. The Immaculate Conception

Who ever originated a heresy that did not first dissever himself from the consentient agreement of the universality and antiquity of the Catholic Church? That this is so is demonstrated in the clearest way by examples. For who ever before that profane Pelagius attributed so much antecedent strength to Free-will, as to deny the necessity of God’s grace to aid it towards good in every single act? Who ever before his monstrous disciple Cœlestius denied that the whole human race is involved in the guilt of Adam’s sin? (A Commonitory 24.62 as found in Nicene and Post-Nicene Fathers series 2 vol. XI, pp. 149-50)