Human Physiology. 



possible perfection. Men have but to carry reason and con- 

 science into the domain of love, to make marriage one of the 

 highest and most sacred duties of life, in order to ensure a 

 healthy, highly developed, and happy posterity. 



CHAPTER VIII. 



THE LAWS OF SEXUAL MORALITY. 



All Laws founded in Nature The Law for Childhood The Law for 

 Youth Equality of the Sexes Opinion of Dr. Carpenter Waste of 

 Life The Law of Chastity The Law of Marriage Worldly Morality 

 "Sexual Religion" An Abhorrent Doctrine The Christian Doc- 

 trine of Marriage The Law of Progress. 



ALL laws affecting the welfare of man are written in his consti- 

 tution. All rules of conduct, to be ot any value in promoting 

 his happiness, must be in harmony with his unperverted nature. 

 No law, or social custom can have any reality to us, if it i? 

 not in accord with our highest sense of right if we do not 

 recognise its fitness to our physical, moral, and intellectual 

 nature, and its correspondence to our highest ideal of truth, 

 duty, and enjoyment. 



The laws of sexual morality must have this basis. The un- 

 perverted instincts of all animals living in a state of nature are 

 the law of their life. The instincts of man are so perverted by 

 his unnatural conditions, that they can seldom be trusted to 

 guide him in the path of virtue, health, and happiness. Men 

 inherit perverted natures, diseased constitutions, disordered 

 propensities, from their progenitors. Their education and 

 habits of life often increase these evils of birth. Air, clothing, 

 food, drinks, narcotics, and intoxicants, employments and 



