Blessed is he who like Joshua (cf. Josh. 10:12-13) keeps the Sun of righteousness from setting in himself throughout the whole day of his present life, not allowing it to be blotted out by the dusk of sin and ignorance. In this way he will truly be able to put to flight the cunning demons that rise up against him.

A passion is a contranatural movement of the soul or an irrational love, or an blindfold hatred toward any material thing, or because of it: for example, for food, or for women, or for riches, or for worldly glory, or any other sensible thing; or for the sake of such things, as in a senseless hatred for someone on account of the things mentioned above.

Theology without practice is the theology of demons

The Logos came down out of love for us. Let us not keep Him down permanently, but let us go up with Him to the Father, leaving the earth and earthly things behind, lest He say to us what He said to the Jews because of their stubbornness: 'I go where you cannot come (Jn. 8:21).

Some passions are bodily, other spiritual. Bodily passions have their sources in the body, while spiritual ones come from external things. But love and temperance cut out both the one and the other: Love cuts out spiritual passions, and temperance bodily ones.

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.

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).