The saying "He who teaches others, teaches himself" is very true, not only because constant repetition impresses a fact indelibly on the mind, but because the process of teaching itself gives deeper insight into the subject taught.
John Amos ComeniusFor more than a hundred years much complaint has been made of the unmethodical way in which schools are conducted, but it is only within the last thirty that any serious attempt has been made to find a remedy for this state of things. And with what result? Schools remain exactly as they were.
John Amos ComeniusBoyhood is distracted for years with precepts of grammar that are infinitely prolix, perplexed and obscure.
John Amos Comenius