Such relaxation must not however be unlimited: otherwise the refusal to
 give a holiday will make boys hate their work, while excessive
 indulgence will accustom them to idleness. There are moreover certain
 games which have an educational value for boys, as for instance when
 they compete in posing each other with all kinds of questions which they
 ask turn and turn about. Games too reveal character in the most natural way, at least that is so
 if the teacher will bear in mind that there is no child so young as to
 be unable to learn to distinguish between right and wrong, and that the
 character is best moulded, when it is still guiltless of deceit and most
 susceptible to instruction: for once a bad habit has become engrained,
 it is easier to break than bend. There must be no delay, then, in warning a boy that his actions must be
 unselfish, honest, self-controlled, and we must never forget the words
 of Virgil, So strong is custom formed in early
 years. Georg. ii. 272. I disapprove of flogging, although it is the regular
 custom and meets with the acquiescence of Chrysippus, because in the
 first place it is a disgraceful form of punishment and fit only for
 slaves,