The final orange copy of AP129 "Flying Vol 1, Aircraft and Equipment" and AP129 "Flying Vol 2, Aircraft Operations" fully amended (unusual for me, on 20 Aug 66) and totally complete just before it was replaced, I believe, by AP1234.
Quote from early chapter:
3. The aircraft captain is the leader of his crew. In him, as in any other leader, should be found and expressed the quality of leadership. The existence of this quality has long been recognized by the human race. Not only is leadership inevitable to man's history it is necessary to the making of it.Without leadership no enterprise of any importance has ever been carried through with success. Seemingly hopeless causes have been won through the example, personal influence, and determination of some great leader.
A heavy load to place on a 20 year old.