G. stanley hall

Of all work-schools, a good farm is probably the best for motor development.

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

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

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.

Being an only child is a disease in itself.

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

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

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.