Everything that tends to make it difficult to distinguish youth from age is an act of civilization. The best-mannered age in history invented the wig… - André Maurois

To amuse is not to teach. The object of teaching is to erect a framework of knowledge in a child's mind and gradually to bring the child as near as may be to the average level of intelligence. Later in life the facts taught by experience and new discoveries will add themselves to this framework. It is wrong to attempt to upset this natural order and to appeal to a child's mind by diverting it with the spectacle of modern life. Teaching by means of pictures, radio, and the cinema is in itself ineffective; these methods must not be used unless they involve (and this is possible) some effort or special enthusiasm. That which is learned without difficulty is soon forgotten, and for the same reason, oral instruction which does not require the pupil's personal participation is almost always rather useless. Eloquence slides in and out of young minds. To listen is not to work. (Naturally this does not apply to the teaching of modern languages.)

Old age diminishes our strength; it takes away our pleasures one after the other; it withers the soul as well as the body; it renders adventure and friendship difficult; and finally it is shadowed by thoughts of death.

Civilizations founded upon polygamy have always given way to those founded upon monogamy. Polygamy weakens men and diminishes the charm of the community in which it is practiced; and in any case it is foreign to the tastes and requirements of our modern women.