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

The years from about eight to twelve constitute a unique period of human life.

Constant muscular activity was natural for the child, and, therefore, the immense effort of the drillmaster teachers to make children sit still was harmful and useless.

Every theory of love, from Plato down teaches that each individual loves in the other sex what he lacks in himself.

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

Modern man was not meant to do his best work before forty but is by nature, and is becoming more so, an afternoon and evening worker.

Dancing is imperatively needed to give poise to the nerves, schooling to the emotions, strength to the will, and to harmonize the feelings and the intellect with the body that supports them