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.

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

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.

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.

Adolescence is when the very worst and best impulses in the human soul struggle against each other for possession.

.. every step of the upward way is strewn with wreckage of body, mind, and morals.