Along with literature women saved a whole collection of notions difficult to determine. It is not a question of the long string of superstitions, but of the element of practical science contained in these superstitions, these beliefs, these traditions. To estimate the importance of this chapter of human knowledge, one should make a sort of examination of his own consciousness. Then, after long reflection, he will be able to distinguish between things learned from books, and those which, while never written, everyone knows. What is truly indispensable for the conduct of life has been taught us by women--the petty rules of politeness, those acts which win us the cordiality or deference of others; those words which assure us a welcome; those attitudes which must be varied according to the character and the situation; all social strategy. It is listening to women that teaches us to speak to men, to worm our way into their will. For those alone who know how to please, can teach the art of pleasing. Even before he speaks, a child knows the value of a smile. It is his first language, and nothing proves that it is absolutely instinctive. The animal has only those attitudes which are the sign of a need. Some are beautiful, some are pretty, but none are voluntary. The smallest child's smile often veils an intention. Woman has taught it the mystery of exchanges, and the fact that a friendly gesture can win food and other things essential to life. The little girl, better disposed than the boy to appreciate this teaching, knows the value of curving lips and of the wave of her rosy hand, long before knowledge of the vocal signs has permitted her tender brain the most elementary reasoning. It is, then, in her case, pure imitation; but the act is favoured by recollection of the end already obtained by the first attempt, and we have here a very curious and obscure example of an effect determining its cause in physiological unconsciousness. Since women have little in their lives but passional relations, this very primitive play remains the basis of their social tactics. Men feel progressively the need of complicating this elementary science, but it always remains for them a supreme resource. To touch his conqueror, to please him--such is the last argument of the conquered.