"'We have put the light burden on one side, that is to say, self-accusation, and we have loaded ourselves with a heavy one, that is to say, self-justification.'"

Abba John the Dwarf 21 (PG 65, col. 212).  This one doesn't appear in the Collection systématique (SC 387, 474, and 498), or, at least, not in the Concordance (SC 498, pp. 217 ff.) under Jean Colobos.  The desert Christian:  sayings of the Desert Fathers:  the alphabetical collection, trans. Benedicta Ward (New York, NY:  Macmillan Publishing Co., Inc., 1975), 90.