Why, we have known ascetics of this class who have persisted in their fasting even unto death, as if with such sacrifices God were well pleased Hebrews 13:16; and, again, others who rush off into the extreme diametrically opposite, practising celibacy in name only and leading a life in no way different from the secular; for they not only indulge in the pleasures of the table, but are openly known to have a woman in their houses ; and they call such a friendship a brotherly affection, as if, forsooth, they could veil their own thought, which is inclined to evil, under a sacred term. It is owing to them that this pure and holy profession of virginity is blasphemed among the Gentiles. 

—St. Gregory of Nyssa, On Virginity, Chap. 23