CHAPTER IV: How vainglory attacks a monk on the right had and on the left.
For where the devil cannot create vainglory in a man by means of his well-fitting and neat dress, he tries to introduce it by means of a dirty, cheap, and uncared-for style. If he cannot drag a man down by honour, he overthrows him by humility. If he cannot make him puffed up by the grace of knowledge and eloquence, he pulls him down by the weight of silence. If a man fasts openly, he is attacked by the pride of vanity.
CHAPTER VI: That vainglory is not altogther got rid of by the advantages of solitude. IN solitude also it does not cease from pursuing him who has for the sake of glory fled from intercourse with all men. And the more thoroughly a man has shunned the whole world, so much the more keenly does it pursue him. It tries to lift up with pride one man because of his great endurance of work and labour, another because of his extreme readiness to obey, another because he outstrips other men in humility. One man is tempted through the extent of his knowledge, another through the extent of his reading, another through the length of his vigils. Nor does this malady endeavour to wound a man except through his virtues; introducing hindrances which lead to death by means of those very things through which the supplies of life are sought. For when men are anxious to walk in the path of holiness and perfection, the enemies do not lay their snares to deceive them anywhere except in the way along which they walk, in accordance with that saying of the blessed David: “In the way wherein I walked have they laid a snare for me;” that in this very way of virtue along which we are walking, when pressing on to “the prize of our high calling,” we may be elated by our successes, and so sink down, and fall with the feet of our soul entangled and caught in the snares of vainglory. And so it results that those of us who could not be vanquished in the conflict with the foe are overcome by the very greatness of our triumph, or else (which is another kind of deception) that, overstraining the limits of that self- restraint which is possible to us, we fail of perseverance in our course on account of bodily weakness.
CHAPTER VII: How vainglory, when it has been overcome, rises again keener than ever for the fight. ALL, vices when overcome grow feeble, and when beaten are day by day rendered weaker, and both in regard to place and time grow less and subside, or at any rate, as they are unlike the opposite virtues, are more easily shunned and avoided: but this one when it is beaten rises again keener than ever for the struggle; and when we think that it is destroyed, it revives again, the stronger for its death. The other kinds of vices usually only attack those whom they have overcome in the conflict; but this one pursues its victors only the more keenly; and the more thoroughly it has been resisted, so much the more vigorously does it attack the man who is elated by his victory over it. And heroin lies the crafty cunning of our adversary, namely, in the fact that, where he cannot overcome the soldier of Christ by the weapons of the foe, he lays him low by his own spear.
CHAPTER XIII: Of the ways in which vainglory attacks a monk. Is the case also of beginners and of those who have as yet made but little progress either in powers of mind or in knowledge it usually puffs up their minds, either because of the quality of their voice because they can sing well, or because their bodies are emaciated, or because they are of a good figure, or because they have rich and noble kinsfolk, or because they have despised a military life and honours. Sometimes too it persuades a man that if he had remained in the world he would easily have obtained honours and riches, which perhaps could not possibly have been secured, and inflates him with a vain hope of uncertain things; and in the case of those things which he never possessed, puffs him up with pride and vanity, as if he were one who had despised them.
—St. John Cassian, Institutes