When our intellect has shaken off its many opinions about created things, then the inner principle of truth appears clearly to it, providing it with a foundation of real knowledge and removing its former preconceptions as though removing scales from eyes, as happened in the case of St. Paul (cf. Acts 9:18). For an understanding of Scripture that does not go beyond the literal meaning, and a view of the sensible world that relies exclusively on sense perception, are indeed scales, blinding the soul's visionary faculty and preventing access to the pure Logos of truth.
Maximus the ConfessorIf we keep the path of virtue undefiled through devout and true knowledge, and do not deviate to either side, we will experience the advent of God revealed to us because of our dispassion. For 'I will sing a psalm and in a pure path I will understand when Thou wilt come to me' (cf. Ps. 101:1-2). The psalm stands for virtuous conduct; understanding indicates the spiritual knowledge, gained through virtue, by means of which we perceive God's advent, when we wait for the Lord vigilant in the virtues.
Maximus the ConfessorSome 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.
Maximus the ConfessorThe person who loves God cannot help loving every man as himself, even though he is grieved by the passions of those who are not yet purified. But when they amend their lives, his delight is indescribable and knows no bounds.
Maximus the ConfessorInasmuch as you pray with all your soul for the one who has slandered you, so much will God reveal the truth to them who have believed the slander.
Maximus the Confessor