Human Physiology. 3 



perfect of His works subject to our observation, and giving us 

 that knowledge of ourselves which must be the basis of indi- 

 vidual and social progress and well-being. 



" To live wisely on the earth we must know our relations to 

 matter, elements, and forces, and the vegetable and animal 

 creation. To live usefully and happily with our fellow-men, 

 we must know ourselves and them, and our mutual relations 

 and duties, sympathies and antipathies. Especially must we 

 know the mutual relations of the sexes, and of parents and 

 children, for these are the basis of morals and society. Lacking 

 the instincts which guide the lower animals infallibly into the 

 conditions and modes of life to which they are adapted, we 

 need knowledge, science, the guidance of reason, and an 

 enlightened conscience, which cannot fail to be in harmony 

 with the will of a beneficent Creator. 



" Every portion of this Science of Man needs to be carefully 

 and reverently studied. No part can be rightly or safely 

 omitted. The propagation of the human race, and the 

 hereditary transmission of physical and mental qualities, are 

 subjects of the highest importance to every human being. 

 Nor is it possible to treat of morals and society, and the duties 

 of men and women in their most intimate and sacred relations, 

 without a knowledge of the elements which form the basis of 

 such relations ; for I believe that it can be clearly shown that 

 the laws of nature are in perfect harmony with the demands of 

 morality, and that virtue and religion require nothing which is 

 not the highest good of every creature." 



If I am right in this belief, those who hold and teach the 

 contrary are fearfully wrong. Professedly scientific works are 

 very widely circulated which denounce the morality of law and 

 religion as an injury to man and society; which counsel the 

 young of both sexes to throw off all restraint, and abandon 

 even the pretence of virtuous principles and conduct. It is 

 time that such doctrines, propagated with the avowed intention 



