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 as the time when an individual ‘recapitulates’ the savage stage of the race’s past.

The teens are emotionally unstable and pathic. It is a natural impulse to experience hot and perfervid psychic states, and it is characterized by emotionalism. We see here the instability and fluctuations now so characteristic. The emotions develop by contrast and reaction into the opposite.

Adolescence is a new birth, for the higher and more completely human traits are now born.

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

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

Normal children often pass through stages of passionate cruelty, laziness, lying and thievery.