For the reasons just stated, I consider that by the means I have indicated and others like them the young man's desires may be kept in ignorance and his senses pure up to the age of twenty. This is so true that among the Germans a young man who lost his virginity before that age was considered dishonoured; and the writers justly attribute the vigour of constitution and the number of children among the Germans to the continence of these nations during youth. This period may be prolonged still further, and a few centuries ago nothing was more common even in France. Among other well-known examples, Montaigne's father, a man no less scrupulously truthful than strong and healthy, swore that his was a virgin marriage at three and thirty, and he had served for a long time in the Italian wars. We may see in the writings of his son what strength and spirit were shown by the father when he was over sixty. Certainly the contrary opinion depends rather on our own morals and our own prejudices than on the experience of the race as a whole. I may, therefore, leave on one side the experience of our young people; it proves nothing for those who have been educated in another fashion. Considering that nature has fixed no exact limits which cannot be advanced or postponed, I think I may, without going beyond the law of nature, assume that under my care Emil has so far remained in his first innocence, but I see that this happy period is drawing to a close. Surrounded by ever-increasing perils, he will escape me at the first opportunity in spite of all my efforts, and this opportunity will not long be delayed; he will follow the blind instinct of his senses; the chances are a thousand to one on his ruin. I have considered the morals of mankind too profoundly not to be aware of the irrevocable influence of this first moment on all the rest of his life. If I dissimulate and pretend to see nothing, he will take advantage of my weakness; if he thinks he can deceive me, he will despise me, and I become an accomplice in his destruction. If I try to recall him, the time is past, he no longer heeds me, he finds me tiresome, hateful, intolerable; it will not be long before he is rid of me. There is therefore only one reasonable course open to me; I must make him accountable for his own actions, I must at least preserve him from being taken unawares, and I must show him plainly the dangers which beset his path. I have restrained him so far through his ignorance; henceforward his restraint must be his own knowledge.