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

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.

Precisely what menstruation is, is not yet very well known.

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.

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

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

Being an only child is a disease in itself.