About the book: year / "The rule, so well explained by the writer Emil, but which would be inconsistent with the outline of public education, consists in combining instructions with action and rules with experience. The upbringing of one person is very different from the upbringing of many. A private mentor, who is always with his pupil, can at his own will have successes; he can even use those that the case presents - in a word, he can follow the writer of Emil, since he is provided with enlightenment, rules of instruction, constancy…»