the life, and though it may fade from memory its influence is abiding.

(3) Development or Increase of Power and Skill.

Every muscle exercised gains greater freedom. Every knotty problem
mastered means increased mental ability. Every victory means greater
power in resisting temptation. Whatever the action, whether good or bad,
helpful or harmful, greater skill and power in that direction follows
it.

This other very important fact needs to be clear, that no amount of
energy put forth for another will mean development for him. He must
exercise his own arm for strength and solve his own problem. Development
only comes through the effort of each individual for himself; hence the
best teacher is the one who can rouse the pupil to the greatest
endeavor.

(4) Habit Formation.

It is impossible to act, physically, mentally or spiritually, without
making it easier to repeat the action, and soon ease passes to tendency,
then tendency to compulsion, and life is in the grip of a habit. This is
the inevitable outcome of activity, until "nine-tenths of life is lived
in the mould of habit."

If it be true that habit is "ten times second nature," the importance of
directing activity toward the formation of right habits needs no
discussion.

IV. The Fourth Principle of unfolding life deals with its crises. "The