76 Teachings of Thomas Huxley 



may depend upon structural differences which 

 shall be absolutely inappreciable to us with our 

 present means of investigation." He considers 

 that without speech man would scarcely be en- 

 titled to lay claim to superiority; that if all 

 men were suddenly struck dumb we would be 

 but little removed from the brutes; and that 

 the moral and intellectual differences might still 

 be infinite, yet the naturalist should not be able 

 to find a single shadow of specific structural 

 difference. 



This might be true in a strict sense, and 

 would hold for men dumb; but so long as 

 thought exists communication must go on be- 

 tween man and man in one form or another, 

 and I believe we should soon accommodate our- 

 selves to the new conditions. Even were this 

 not so, if thought still existed there would be 

 plenty of evidence in man's work to prove his 

 superiority; therefore it does not seem that 

 speech is primarily essential however indis- 

 pensable. The real cause of man's superiority 

 is because he has developed mentally and phys- 

 ically into something more than an antomatom, 

 and is capable of making his will predominate 

 over other animals to the extent that he 

 can control them through his ingenious con- 

 trivances. 



INSTINCT AND REASON. 



As was mentioned above in the section on 



