The advocates of continence cite the cases of many continent men who have been noted for their vigor and activity; and claim that such cases also justify their claim that continence makes for the sound mind in the sound body of mankind. The following quotations from authorities will give the general spirit of this contention. Dr. Kellogg says: "It has been claimed by many, even physicians, and though with but a slight show of reason, that absolute continence, after a full development of the organs of reproduction, could not be maintained without a great detriment to health. It is needless to enumerate all the different arguments employed to support this position, since they are, with a few exceptions, too frivolous to mention." Dr. Mayer says: "This position is held by men of the world, and many physicians share it. This belief appears to us erroneous, without foundation, and easily refuted. No peculiar disease nor any abridgement of the duration of life can be ascribed to such continence. * * * Health does not absolutely require that there should ever be an emission of semen, from puberty to death, though the individual live a hundred years." Dr. Kellogg also says: "This has been amply confirmed by experiments upon animals, as well as by the experience of some of the most distinguished men who have ever lived, among whom may be mentioned Sir Isaac Newton, Kant, Paschal, Fontenaille, and Michael Angelo. These men never married, and lived continent lives. Some of them lived to be a very great age, retaining to the last their wonderful abilities. In view of this fact, there is certainly no danger." Another writer has said: "The Greek athletes training for the great Olympic Games were compelled to observe strict continence, the experience being that by this course they were able to conserve their vigor and strength much better. The prize-fighters of today are compelled by their trainers to observe strict continence during the period of training. Many of the former champions who went to pieces suddenly, owe their downfall to a violation of this rule." Another has said: "Chastity, even continence, is the prime necessity of the successful athlete." Dr. Kellogg forcefully says: "Breeders of stock who wish to secure sound progeny will not allow the most robust stallion to associate with mares as many times during the whole season as some of these salacious human males perform a similar act within a month."