There is no more wild, free, vigorous growth of the forest, but everything is in pots or rows like a rococo garden... The pupil is in the age of spontaneous variation which at no period of life is so great. He does not want a standardized, overpeptonized mental diet. It palls on his appetite.

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

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

Oneness with Nature is the glory of childhood; oneness with childhood is the glory of the Teacher.

The man of the future may, and even must, do things impossible in the past and acquire new motor variations not given by heredity.

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