The Epistle is a correction of profession without life, and most valuable in this respect.
As leader of the effort of the Iraqi Survey Group, I spent most of my days not out in the field leading inspections. It's typically what you do at that level. I was trying to motivate, direct, find strategies.
When a woman gives birth to a child, the child needs to be able to digest the mother's milk; but when this child is old enough to begin to eat other foods, there is some switching off of this ability to consume milk.