The prayer of one who does not consider himself a sinner is not accepted by the Lord.
Isaac of NinevehAs a handful of sand thrown into the ocean, so are the sins of all flesh as compared with the mind of God.
Isaac of NinevehThe soul that loves God has its rest in God and in God alone. In all the paths that men walk in in the world, they do not attain peace until they draw nigh to hope in God.
Isaac of Nineveh