”Though shalt not commit adultery.” “Who so ever looketh on a woman to — John Harvey Kellogg

"Masculine purity loves to regard women as chaste in mind as well as in body, to surround her with conceptions of purity and impregnable virtue; but the conclusion is irresistible that those who can gloat over others’ lapses from virtue, and find delight in such questionable entertainments as the most recent case of seduction, or the newest scandal, have need to purify their hearts and re-enforce their waning chastity."

"As we have shown, a child conceived in lust can no more be chaste by nature than a negro can be a Caucasian. But back of this there is a deeper cause, as we shall see, one that affects parents as well as offspring. Between infancy and puberty, are in operation, all those influenced mentioned under “Sexual Precocity.” The frequent custom of allowing children of the opposite sex to sleep together, even until eight or ten years of age, or longer is a dangerous one. We have known of instances in which little boys of seven or eight have been allowed to sleep with girls of fourteen or sixteen, in some of which most shameful lessons were taught, and by persons who would not be suspected of such an impropriety. In one instance a little boy of eight, occupying the same bed with three girls several years older, was used for illustration by the older girl in instructing the younger ones in the “modus operandi” of reproduction. The sexes should be carefully separated from each other at least as early as four or five years of age, under all circumstances which could afford opportunity for observing the physical differences of the sexes, or in any way serve to excite those passions which at this tender age should be wholly dormant."

"The tendency of luxury is toward demoralization. Rome never became dissipated and corrupt until her citizens became wealthy, and adopted luxurious modes of living. Nothing is much more conducive to sound morals than full occupation of the mind with useful labor. Fashionable idleness is a force to virtue. The young man or the young woman who wasted the precious hours of life in listless dreaming or in that sort of senseless twaddle which forms the bulk of the conversation in some circles, is in very great danger of demoralization. Many of the usages and customs of fashionable society seems to open the door to vice, and to insidiously, and at first unconsciously, lead the young and inexperienced away from the paths of purity and virtue. There is a good evidence that the amount of immorality among what are known as the higher classes is every year increasing. Every now and then a scandal in high life comes to the surface; but the great mass of corruption is effectually hidden from the general public. Open profligacy is of course frowned upon in all respectable circles; and yet wealth and accomplishments will cover a multitude of sins. This freedom allowed to the vile and vicious is one of the worst features of fashionable society. Such persons carry about them a moral atmosphere more deadly than the dreaded upastress."

"It is a wide-spread and deadly error, that only outward acts are harmful; that only outward acts are harmful; that only physical transgression of the laws of chastity will produce disease. We have seen all the effects of beastly abuse result from mental sin alone. I have traced serious affections and very great suffering to this cause. The cases may occur at any period of life. We meet with them frequently among such as are usually called or think themselves, continent young men. There are large classes of persons who seem to think that they may, without moral guilt, excite their own feelings or those of others by loose or libidinous conversation in society, provided such impure thoughts or acts are not followed by masturbation or fornication. I have almost daily to tell such persons that physically, and in a sanitary point of view, they are ruining their constitutions. There are young men who almost pass their lives in making carnal acquaintances in the street, but just stop short of seducing girls; there are others who haunt the lower classes of places of public amusement for the purpose of sexual excitement, and live, in fact, a thoroughly immoral life in all respects except actually going home with prostitutes. When these men come to me, laboring under the various forms of impotence, they are surprised at my suggesting to them the possibility of the impairment of their powers being dependent upon these previous vicious habits.”"

"Travelers among the North American Indians have been struck with the almost entire absence of that abandonment to vice which might be expected in a race uninfluenced by the moral restraints of Christianity. When first discovered in their native wilds, they were free from both the vices and the consequent diseases of civilization. This fact points unmistakably to the conclusion that there must be something in the refinements and perversions of civilized life which is unfavorable to chastity, notwithstanding all the restraints which religion and the conventionalisms of society impose. Can we find such influences? Yes; they abound on every hand and leave their blight in most unwelcome places, oft unsuspected, even, till the work of ruin is complete."

"The sin of self-pollution is one of the vilest, the basest, and the most degrading that a human being can commit. It is worse than beastly. Those who commit it place themselves far below the meanest brute that breathes."