You have no peace from thoughts, which impel you to trouble others, and in turn to be troubled by others. But know, my brother, that if we offend by word or deed, we are thereby ourselves offended a hundredfold. Be longsuffering in all things and refrain from letting your own will enter into anything. Carefully examine your thoughts lest they infect your heart with deadly poison (ill temper) and make you take a gnat for a camel, a pebble for a cliff, and lest you become like a man who has a beam in his own eye but beholds the mote in the eye of another.
Holiness is not simply righteousness, for which the righteous are rewarded with blessedness in the Kingdom of God; rather, it is such a height of righteousness that people are so filled with the grace of God that it flows from them even upon those who associate with them. Great is their blessedness, which proceeds from their direct contemplation of the glory of God. Being filled also with love for men, which proceeds from love of God, they are responsive to men's needs, and at their entreaties they act as mediators and intercessors for them before God.
If we fervently desire holiness, the Holy Spirit at the outset gives the soul a full and conscious taste of God’s sweetness, so that the intellect will know exactly of what the final reward of the spiritual life consists.
After a man has decided to abandon his wrong ways and actually does abandon them, the first task of the enemy is to clear a space for an unhampered field of action against him. He succeeds in this by suggesting to a man, who has entered the right path, that he should act on his own, and not go for advice and guidance to the teachers of righteous life, who are always attached to the Church. A man who follows their guidance and verifies all his actions, both inner and outer, by the good judgement of his teachers - priests in their parishes in the case of laymen, experienced startzi in monasteries - cannot be approached by the enemy. Whatever he may suggest, the experienced eye will at once see where he is driving and will warn his pupil. In this way all his wiles are defeated. But if a man turns away from his teachers, the enemy will at once confuse him and lead him astray ... There are many possibilities, which do not look evil; and those he suggests... the novice, who, feeling thus free and unhampered, begins to imagine that this good state is the fruit of his own efforts, and so rests in them.
Not every man can be trusted when giving advice to those who seek it. We can trust only him who has received from God the grace of discrimination and who ... has acquired through great humility and long practice of the virtues an intellect blessed with spiritual insight. Such a man is in a position to advise, not everyone, but at least those who seek him out voluntarily and who question him by their own choice; for he has learned things in their true order.