To act 'according to one’s strength' means to use a little less than necessary both of food, and drink, and sleep... As for food, restrain yourself when you wish to eat a little more, and in this way you will always make use of it moderately.
When your brother is disturbed and reacts to what you say to him, control your tongue lest you speak even one word in wrath and do not allow yourself to be arrogant concerning him in your heart but remember that he is your brother, a member of Christ and an image of God, influenced by the common enemy. Be merciful and show pity on him because it is possible that the devil through your wrath, will capture his soul and mortify it in resentment and thus, through your carelessness, the soul for whom Christ died is lost (1 Cor. 5:11).
My brother, the passions are afflictions; and so the Lord does not excommunicate us because of them, but He says: 'Call upon me in the time of affliction; and I will deliver thee, and thou shalt glorify me'. Therefore, when beset by any kind of passion, there is nothing more useful than to call upon the Name of God. All we can do, weak as we are, is to flee for refuge to the Name of Jesus. For the passions, being demons, retreat if this Name is invoked.
Batiushka said regarding condemnation and criticism of other’s faults and sins: 'You need to pay such close attention to your own internal life, that you not focus on what is happening around you. Then you will not condemn.'
But let thine apparel be plain, not for adornment, but for necessary conversing: not to minister to thy vanity, but to keep thee warm in winter, and to hide the unseemliness of the body: lest under the pretence of hiding the unseemliness, thou fall under another kind of unseemliness by thy extravagant dress.
Do you see the humility of the saints? How their hearts were moved? Even when God sent them to help other people, they did not agree to this easily out of humility and to avoid glory. Like a man wearing an all-silk garment, if someone throws a dirty rag at him he leaves so as not to ruin his expensive clothes, it is with the saints, who are dressed in virtues, and avoid human glory in order not to be defiled.
Tedium is the granddaughter of despondency, and the daughter of slothfulness. In order to drive it away, labor at your work, and do not be slothful in prayer. The tedium will pass, and zeal will come. And if to this you add patience and humility, then you will be rid of all misfortunes and evils.
'If you do not feel like praying, you have to force yourself,' the Elder said. 'The Holy Fathers say that prayer with force is higher than prayer unforced. You do not want to, but force yourself. The Kingdom of Heaven is taken by force.'
In every circumstance we must look upwards. Whether someone does good to us or we suffer harm from anyone, we must look upwards and thank God for all that befalls us, always reproaching ourselves and regarding all the good that happens to us as the work of God's merciful providence, and all the bad as the result of our own sins.
When a man walks the straight path, he does not have a cross. But when he begins to step away from one side to another, then various circumstances arise that push him back onto a right path. These pushes comprise a man's cross. They vary, of course, according to what each individual needs.
What is self-justification? - Self-justification is when a man denies his sin, as we see in the case of Adam, Eve, Cain and others who have sinned but, wishing to justify themselves, denied their sin.