St. Amphilochius of Iconium (IV century) – disciple of St. Basil the Great and the “fourth Cappadocian.” “Conversation on Repentance” by Saint Amphilochius is a moral and edifying work that talks about devilish thoughts and spiritual warfare with them, human sinfulness and the infinite goodness of God, the meaning and saving significance of repentance in spiritual life. The book is based on tales from the lives of saints and is addressed to the widest circle of Orthodox readers.