"It is said, Not all are apostles, nor all prophets, but this is not now heeded in many of the churches. For many, still in need of being purified from the way they have lived, unwashed and full of spots in their life's garment and protecting themselves only with their irrational sense, make an assault on the divine mountain. So it happens that they are stoned by their own reasonings, for heretical opinions are in effect stone which crush the inventor of evil doctrines."
–St. Gregory of Nyssa, The Life of Moses (trans. Malherbe & Ferguson)