He who devoutly strives to attain wisdom and is on his guard against the invisible powers, should pray that both natural discrimination - whose light is but limited - and the illuminating grace of the Spirit abide in him. The first by means of practice trains the flesh in virtue, the second illuminates the intellect so that it chooses above all else companionship with wisdom; and through wisdom it destroys the strongholds of evil and pulls down 'all the self-esteem that exalts itself against the knowledge of God' (II Cor. 10:5).

Just as the thought of fire does not warm the body, so faith without love does not actualize the light of spiritual knowledge in the soul.

If everything that exists was made by God and for God, and God is superior to the things made by Him, he who abandons what is superior and devotes Himself to what is inferior shows that he values things made by God more than God Himself.

If you make provision for the desires of the flesh and bear a grudge against your neighbor on account of something transitory, you worship the creature instead of the Creator.

Love is manifested not only through the distribution of one's possessions, but even moreso through the spreading of the word of God and helpful deeds.

Theology without practice is the theology of demons

If the words of God are uttered merely as verbal expressions, and their message is not rooted in the virtuous way of life of those who utter them, they will not be heard. But if they are uttered through the practice of the commandments, their sound has such power that they dissolve the demons and dispose men eagerly to build their hearts into temples of God through making progress in works of righteousness.