298 OPERATIONS SUBSIDIARY TO INDUCTION. 



exclusively of them, and of applying them to cases as 

 they arise, without keeping up his acquaintance with 

 the realities from which these laws were collected 

 not only will he continually fail in his practical efforts, 

 because he will apply his formulae without duly con- 

 sidering whether, in this case and in that, other laws 

 of nature do not modify or supersede them; but the 

 formulae themselves will progressively lose their 

 meaning to him, and he will cease at last even to be 

 capable of recognising with certainty whether a case 

 falls within the contemplation of his formula or not. 

 It is, in short, as necessary, on all subjects not 

 mathematical, that the things on which we reason 

 should be conceived by us in the concrete, and 

 " clothed in circumstances," as it is in algebra that 

 we should keep all individualizing peculiarities sedu- 

 lously out of view. 



With this remark we shall close our observa- 

 tions on the Philosophy of Language. 



