176 PIONEERS OF EVOLUTION PART 



visions of the statute-book, and the commands of the 

 decalogue, have grown from the same root If we 

 go far back enough into the ages of primaeval 

 Fetishism, it becomes manifest that originally Deity, 

 Chief, and Master of the Ceremonies were identical ' 

 (Essays, vol. i., 1883 edition; ' Manners and Fashion/ 



P . 6 S ). 



' Scientific advance is as much from the special 

 to the general as from the general to the special. 

 Quite in harmony with this we find to be the 

 admissions that the sciences are as branches of one 

 trunk, and that they were at first cultivated simul- 

 taneously; and this becomes the more marked on 

 finding, as we have done, not only that the sciences 

 have a common root, but that science in general 

 has a common root with language, classification, 

 reasoning, art; that throughout civilisation these 

 have advanced together, acting and reacting on 

 each other just as the separate sciences have done ; 

 and that thus the development of intelligence in 

 all its divisions and subdivisions has conformed 

 to this same law to which we have shown the 

 sciences conform ' (/., ' The Genesis of Science/ 

 pp. 191, 192). 



(In correspondence with this, recognising that the 

 same method has to be adopted in all inquiry, 

 whether we deal with the body or the mind, the 

 following may be quoted from Hume's Treatise on 

 Human Nature. 



' 'Tis evident that all the sciences have a relation, 

 greater or less, to human nature ; and that, however 

 wide any of them may "seem to run from it, they 

 still return back by one passage or another. Even 



