“A child should not be ordered about, but should be just as courteously addressed as a grown person in order that he may learn courtesy.”
Key argues that respectful treatment is itself part of teaching respectful conduct: adults model the courtesy they expect children to learn rather than relying only on commands.
Source details
The Century of the Child, Chapter III, “Education,” Francis Maro translation revised by the author, Project Gutenberg #57283, printed page 130. The sentence belongs to Key’s early-twentieth-century reform pedagogy; nearby prescriptions are historically situated and are not imported into this collection as current child-safety or clinical guidance.