The Desert Fathers on Love.

It is certainly a finer and more wonderful thing to change the mind of enemies to another way of thinking than to kill them. The mystery requires that we should be innocent not only of violence but of all enmity, however slight, for it is the mystery of peace. ~ St. John Chrysostom

+

It is a fearful thing to hate whom God has loved To look upon another- his weaknesses, his sins, his faults, his defects- is to look upon one who is suffering. He is suffering from negative passions , from the same sinful himan corruption from which you yourself suffer. This is very important: do not look upon him withe judgemental eyes of comparison, noting the sins you assume you'd never commit. Rather, see him as a fellow sufferer, a fellow human being who is in need of the very healing of which you are in need. Help him, love him, pray for him, do unto him as you would have hime do unto you.
~ St. Tikhon of Zadonsk

+

I no longer fear God, I love him; for love casts out fear. ~ Abba Antony

+

The Lord has shown that we cannot have the good work of perfect love if we only love those from whom in turn we know the return of mutual love will be pais in kind. Hence the Lord wants us to overcome the common law of human love by the law of the Gospel love, so that we may show the affection of our love not oly toward those who love us but even toward our enemies.
~ St. Chromatios of Aquileia