Let there always be a preponderance of mercy with you, even though you don't feel such mercy in yourself, as God has for the world ... A cruel and merciless heart is never purified. A merciful man is the doctor of his own soul, because as it were a by a strong wind from is heart he drives out the darkness of the passions.
Isaac of NinevehWhen you want to make a beginning of a good deed, first prepare for temptations, which will come to you, and don't doubt the truth of that which you do for God.
Isaac of NinevehIt is impossible to draw near to God without sorrows, without which human righteousness cannot remain unchanged... If you desire virtue, than give yourself to every affliction, for afflictions produce humility. If someone abides in virtue without afflictions, the door of pride is opened to him.
Isaac of NinevehWhy do you increase your bonds? Take hold of your life before your light grows dark and you seek help and do not find it. This life has been given to you for repentance; do not waste it in vain pursuits.
Isaac of NinevehHumility collects the soul into a single point by the power of silence. A truly humble man has no desire to be known or admired by others, but wishes to plunge from himself into himself, to become nothing, as if he had never been born. When he is completely hidden to himself in himself, he is completely with God
Isaac of NinevehDraw nigh to the righteous, and through them you will draw nigh to God. Communicate with those who possess humility, and you will learn morals from them. A man who follows one who loves God becomes rich in the mysteries of God; but he who follows an unrighteous and proud man gets far away from God, and will be hated by his friends.
Isaac of Nineveh