We must not only put bodily passions to death but also destroy the soul's impassioned thoughts. Hence the Psalmist says, 'Early in the morning I destroyed all the wicked of the earth, that I might cut off all evil-doers from the city of the Lord' (Ps. 101:8) - that is, the passions of the body and the soul's godless thoughts.
Maximus the ConfessorJust as the light of the sun attracts a healthy eye, so through love knowledge of God naturally draws to itself a pure intellect.
Maximus the ConfessorWhen what has been created in time according to the temporal order has reached maturity, it ceases from natural growth. But when what has been brought about by the knowledge of God through the practice of the virtues has reached maturity, it starts to grow anew. For the end of one stage constitutes the starting point of the next.
Maximus the Confessor'The long-suffering man abounds in understanding' (Prov. 14:29), because he endures everything to the end and, while awaiting that end, patiently bears his distress. The end, as St. Paul says, is everlasting life (cf. Rom. 6:22). 'And this is eternal life, that they might know You the only true God, and Jesus Christ whom You have sent' (Jn. 17:3).
Maximus the ConfessorIf you are remembering evil against someone, then pray for him; and as you remove through prayer the pain of the remembrance of the evil he has done, you will stop the advance of the passion. And when you have attained brotherly love and love for mankind, you will completely cast this passion out of your soul. Then when someone else does evil to you, be affectionate and humble toward him, and treat him kindly, and you will deliver him from this passion.
Maximus the Confessor