Simplex Munditiis

Dom John Chapman, The Four Gospels [1927] (New York, Sheed & Ward, 1944), pp. 62 63.

Porco San Marco

Dom John Chapman, The Four Gospels [1927] (New York: Sheed & Ward, 1944), pp. 29–30.

St. Seraphim of Sarov

Little Russian Philokalia, Vol. I: St. Seraphim of Sarov (Alaska: New Valaam Monestery, St. Herman Press, 1991), pp. 46-48.

Evagrios the Solitary

Philokalia—The Complete Text