If you give gladly, even if you give only a little, it is a big gift. If you give unwillingly, even if you give a big gift, you turn it into a small one.
Even if we have innumerable virtues, the plague of vainglory is capable of destroying them all. If, then, we desire praises let us seek those which come from God.
The kingdom of God is always present for him who desires and wills it. When a man's disposition and way of life are like that of an angel, most assuredly this is the kingdom of God. For God indeed is said to rule as King when nothing worldly meddles in the governing of our souls and when in every respect we live not of this world. This manner of life we have within us, that is to say, we have it within us when we desire and will it. We do not need to wait a long time, or until our departure from this life; instead, faith and a God-pleasing life which accompanies faith are very near us.
But let us speak that which is good, to the edification of faith. That is, to speak only what will help to build up our neighbor in virtue; nothing more than that.
Christ is present in every part of the Church; that is, in every faithful member of it. Through Him, each of the faithful perceives the spiritual Kingdom, feels love and directs his steps aright towards God. From Him, every member receives strength, according to the ‘effectual working and measure’; that is, by function and gift. The Lord gives this strength directly, by His personal presence. Love is a wonderful bond that binds Christ to the believer, the believer to Christ and the faithful to one another.
Favors are given in exchange of faith. Grace is poured out, which faith receives. And as from a fountain some draw a little water in little vessels, and others draw more in bigger vessels, the fountain not distinguishing between the one vessel and the other, since it is the vessels, not the fountain, that measures the water, and each draws according to his measure; and as the splendor of light enters to a greater or less degree according to the dimensions of the window, so is grace received according to the measure of our desire.
The enemy constantly endeavors to awaken in the abyss of the human heart a great turmoil about trifles. This is one of his tricks to blind our soul to the sun of truth, Christ our Lord, hidden in the heart's core of every one of our neighbors.
If the humbling of oneself before men is needful that one might be exalted before God, and temporal toil is the prerequisite of immortal life, what does it matter if some shake their heads and laugh at your self-abasement?
When thou perceivest that God is chastening thee, fly not to His enemies... but to His friends, the martyrs, the saints, and those who were pleasing to Him, and who have great power [parresian, 'boldness of speech'].
He who believes in Christ is not judged, for he judges himself, and sets his feet aright to follow the light that goes before him. As a man in deep darkness adapts his step to the candle in his hand, so also he who believes in Christ; that is, he who is set to follow after Christ as the light in the darkness of life.
You ask for some way of completely eradicating irritability. The inclination to irritability is given us to use against sin, and we were never meant to use it against our fellow men. When we do, we act contrary to our true nature.
Remember always that, once we have decided consciously to strive after righteousness, we cannot escape catastrophes and sorrows, no matter where we are.