'This fasting...is very good, provided the commandments of the Lord be observed...First of all, be on your guard against every evil word, and every evil desire, and purify your heart from all the vanities of this world. If you guard against these things, your fasting will be perfect.' - The Shepherd of Hermas
In which there is shown to be another trinity in the mind of man, and one that appears much more evidently, viz. in his memory, understanding, and will.
