Those who, animal-like, live solely according to the senses... misuse God's creation in order to indulge the passions. They do not understand the principle of that wisdom which is revealed to all: that we should know and praise God through His creation and that by means of the visible world we should understand whence we came, what we are, for what purpose we were made and where we are going. On the contrary, they travel through this present age in darkness... with... ignorance of God.
Maximus the ConfessorUnclean spirits increase the passions in us, making use of our negligence, and inciting them. But the angels decrease our passions, inciting us to the perfection of virtue.
Maximus the ConfessorBut I say to you, the Lord says, love your enemies, do good to those who hate you, pray for those who persecute you. Why did he command these things? So that he might free you from hatred, sadness, anger and grudges, and might grant you the greatest possession of all, perfect love, which is impossible to possess except by the one who loves all equally in imitation of God.
Maximus the ConfessorIf 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.
Maximus the ConfessorWhatever a man loves he inevitably clings to, and in order not to lose it he rejects everything that keeps him from it. So he who loves God cultivates pure prayer, driving out every passion that keeps him from it. He who drives out self-love, the mother of the passions, will with God's help easily rid himself of the rest, such as anger, irritation, rancor and so on. But he who is dominated by self-love is overpowered by the other passions, even against his will. Self-love is the passion of attachment to the body.
Maximus the Confessor