Nilus of Sinai quotes:

Gluttony and satiety in food produce defiled lust, while free association with women enflames the fire of lusts ... At the time of struggle with defilement, punish your thoughts with lack of nourishment, so that you will think not of defilements, but of hunger, and reject the invitation to go visiting.

Blessed is the mind which, during prayer, is insensible to all things.

The spiritual combat in which we kill our passions to put on the new man is the most difficult struggle of all. We must never weary of this combat, but fight the holy fight fervently and perseveringly.