Nicene and Post-Nicene Fathers, Ser. II, Vol. XI:
The Works of John Cassian.: Chapter VIII. Of covetousness, which is something outside our nature, and of the difference between it and those faults which are natural to us.

Chapter VIII.

Of covetousness, which is something outside our nature, and of the difference between it and those faults which are natural to us.

Covetousness and anger, although they are not of the same character (for the former is something outside our nature, while the latter seems to have as it were its seed plot within us) yet they spring up in the same way, as in most instances they find the reasons for their being stirred in something outside of us. For often men who are still rather weak complain that they have fallen into these sins through irritation and the instigation of others, and are plunged headlong into the passions of anger and covetousness by the provocation of other people. But that covetousness is something outside our nature, we can clearly see from this; viz., that it is proved not to have its first starting point inside us, nor does it originate in what contributes to keeping body and soul together, and to the existence of life. For it is plain that nothing belongs to the actual needs and necessities of our common life except our daily meat and drink: but everything else, with whatever zeal and care we preserve it, is shown to be something distinct from the wants of man by the needs of life itself. And so this temptation, as being something outside our nature, only attacks those monks who are but lukewarm and built on a bad foundation, whereas those which are natural to us do not cease from troubling even the best of monks and those who dwell in solitude. And so far is this shown to be true, that we find that there are some nations who are altogether free from this passion of covetousness, because they have never by use and custom received into themselves this fault and infirmity. And we believe that the old world before the flood was for long ages ignorant of the madness of this desire. And in the case of each one of us who makes his renunciation of the world a thorough one, we know that it is extirpated without any difficulty, if, that is, a man gives up all his property, and seeks the monastic discipline in such a way as not to allow himself to keep a single farthing. And we can find thousands of men to bear witness to this, who in a single moment have given up all their property, and have so thoroughly eradicated this passion as not to be in the slightest degree troubled by it afterwards, though all their life long they have to fight against gluttony, and cannot be safe from it without striving with the utmost watchfulness of heart and bodily abstinence.