"I shall speak first about control of the stomach, the opposite to gluttony, and about how to fast and what and how much to eat. I shall say nothing on my own account, but only what I have received from the Holy Fathers. They have not given us only a single rule for fasting or a single standard and measure for eating, because not everyone has the same strength; age, illness or delicacy of body create differences. But they have given us all a single goal: to avoid over-eating and the filling of our bellies... A clear rule for self-control handed down by the Fathers is this: stop eating while still hungry and do not continue until you are satisfied."
*[http://ocafs.oca.org/FeastSaintsViewer.asp?FSID=100623 Venerable John Cassian the Roman] ([[OCA]])
/en/chapel/saints .asp?contentid=445 Righteous John Cassian the Confessor] ([[GOARCH]])