 Being an only child is a disease in itself. |
| Abundance and vigor of automatic movements are desirable, and even a considerable degree of restlessness is a good sign in young children. |
| Muscles are in a most intimate and peculiar sense the organs of the will. |
| 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. |
| The man of the future may, and even must, do things impossible in the past and acquire new motor variations not given by heredity. |
| Adolescence is a new birth, for the higher and more completely human traits are now born. |
| Man is largely a creature of habit, and many of his activities are more or less automatic reflexes from the stimuli of his environment. |
| Of all work-schools, a good farm is probably the best for motor development. |
| The years from about eight to twelve constitute a unique period of human life. |
| Every theory of love, from Plato down, teaches that each individual loves in the other sex what he lacks in himself. |
