Nicene and Post-Nicene Fathers: Series II/Volume XI/John Cassian/The Twelve Books/Book XII/Chapter 33
Remedies against the evil of pride.
And when men remain in this condition, there is no doubt that this quiet and secure state of humility will follow, so that considering ourselves inferior to every one else we shall bear everything offered to us, even if it is hurtful, and saddening, and damaging—with the utmost patience, as if it came from those who are our superiors. And these things we shall not only bear with the greatest ease, but we shall consider them trifling and mere nothings, if we constantly bear in mind the passion of our Lord and of all His Saints: considering that the injuries by which we are tried are so much less than theirs, as we are so far behind their merits and their lives: remembering also that we shall shortly depart out of this world, and soon by a speedy end to our life here become sharers of their lot. For considerations such as these are a sure end not only to pride but to all kinds of sins. Then, next after this we must keep a firm grasp of this same humility towards God: which we must so secure as not only to acknowledge that we cannot possibly perform anything connected with the attainment of perfect virtue without His assistance and grace, but also truly to believe that this very fact that we can understand this, is His own gift.