Civilization is so hard on the body that some have called it a disease, despite the arts that keep puny bodies alive to a greater average age, and our greater protection from contagious and germ diseases.

Education has now become the chief problem of the world, its one holy cause. The nations that see this will survive, and those that fail to do so will slowly perish. . . . There must be re-education of the will and of the heart as well as of the intellect; and the ideals of service must supplant those of selfishness and greed.

Adolescence is when the very worst and best impulses in the human soul struggle against each other for possession.

Muscles are in a most intimate and peculiar sense the organs of the will.

Muscles are in a most intimate and peculiar sense the organs of the will. They have built all the roads, cities and machines in the world, written all the books, spoken all the words, and, in fact done everything that man has accomplished with matter. Character might be a sense defined as a plexus of motor habits.

Puberty for a girl is like floating down a broadening river into an open sea.

Man is largely a creature of habit, and many of his activities are more or less automatic reflexes from the stimuli of his environment.