Teachers should understand these things, and should instruct their pupils in these lines. Teach the students that right living depends on right thinking, and that physical activity is essential to purity of thought. 210 The question of suitable recreation for their pupils is one that teachers often find perplexing. Gymnastic exercises fill a useful place in many schools; but without careful supervision they are often carried to excess. In the gymnasium many youth, by their attempted feats of strength, have done themselves lifelong injury.

Dette burde lærere forstå, og de burde belære deres elever herom. Lær dem, der studerer, at den rette måde at leve livet på er afhængig af den rette tænkemåde, og at fysisk virksomhed er af væsentlig betydning for renhed i tanke. Spørgsmålet om passende fritidsbeskæftigelser for eleverne kan ofte volde lærerne bekymring. Gymnastiske øvelser gør megen gavn i mange skoler; men hvis de ikke bliver omhyggeligt overvåget, bliver de ofte overdrevet. I gymnastiksalen har mange unge på grund af deres forsøg på kraftpræstationer gjort sig selv skade for livet.