LECTURE X. 



RELATION OF THE INSTINCTIVE PRINCIPLES OF 

 ACTION TO THE RATIONAL AND MORAL NA- 

 TURE OF MAN. 



Intuitions and Instincts. — Something must be given as a basis for 

 Reasoning and for acting. — Agricultural Ants. — Belief in the uni- 

 formity of Natural phenomena, from observation. — Instinct acts in 

 reference to contingent events. — Purposes for which Instinctive 

 Principles are needed by man. — The Desires. — The Affections. — 

 Love of Society. — Knowledge, Property, Power, Esteem. — Faith. — 

 Benevolence. — Need of guidance in man. — The Ruling Power. — 

 Conflict between the higher and lower Ifistincts. — The Comprehend- 

 hig Power. — Difference between man and the highest animals. — 

 " OUGHT." — Sense of obligation. 



That man would have animal instincts, as an im- 

 pulse at least, we should expect, since his body has 

 essentially the same structure, and the same rela- 

 tions to the world, as have the bodies of all the 

 higher animals. It now comes in order for us to 

 inquire, if there is Instinct, or any principle of ac- 

 tion like Instinct, reaching into his rational nature ; 

 in virtue of which nature, he is wont to claim great 

 superiority over the lower animals, and difference 

 from them in kind. We are also called upon to 

 trace more fully than we have done, the connection 

 between the animal instincts and this higher nature 

 of man, that we may learn how far they are modi- 



