Gennadius. Lives of Illustrious Men 45

45 Caelestius, follower of Pelagius

Caelestius, before he joined Pelagius, while yet a very young man, wrote to his parents three epistles On monastic life, written as short books, and containing moral maxims suited to every one who is seeking God, containing no trace of the fault which afterwards appeared but wholly devoted to the encouragement of virtue.

Philip Schaff and Henry Wace (eds.), New York: Christian Literature Publishing Co., 1890-1900. Public domain: English translation first published 1885-1900 (Nicene and Post-Nicene Fathers, Second Series).