“It ought now to be obvious that the best type of discipline will evolve from the following circumstances:
(1) When the leader knows the individuals who make up his group.
(2) When the individuals who make up the group know the leader.
(3) When the leader identifies himself with the group in every possible way.
(4) When the whole group is a team inspired by the enthusiasm of the leader.
(5) When the team has a high standard of esprit de corps.
(6) When the team is well‐instructed, keen and efficient.”
Norman Copeland (1942) Psychology and the Soldier: The Art of Leadership. Pennsylvania: The Military Service Publishing Company.