226 



ness, but 

 iutellec- 

 tiial 

 interest. 



HABIT AND INTELLIGENCE. 



[chap. 



of science is now no longer doubted by any except the most 

 ignorant: the motive power of scientific progress is still, 

 as at the first, not its usefulness but its intellectual interest. 

 Were science always engaged in the search after obvious 

 and direct utilities, the highest discoveries would never 

 be made, and the greatest utilities would in all probability 

 be missed. 



" So 'twere to cramp its use, if I 

 Sliovild hook it to some useful eud." i 



The It was not in seeking for some rapid and certain means of 



telegraph. telegT:aphmg, that the properties of the electric current 

 were discovered. 



The remark, that the beginning of science was at the 

 remotest point from human life, is true also in a somewhat 

 different sense from that which has been insisted on above. 

 All science — all inorganic science, at least — depends on 

 measurement: and all other measurements ultimately 



SC1GI1C6 



depends on depend on the measurement of space. Now space is 



Sentsrf altogether external to the mind : we think in time and 



space. not in space ;^ yet the measurement of time depends on 



that of space, and not the converse ; and geometry, which 



is the science of the properties of space, was the earliest 



of the sciences. 



All 



inorganic 



science 



NOTE. 



Jleasure- Equal linear spaces, or equal lines, are those which are capable 

 ment of q£ beina brought alongside of each other so as to coincide. The 

 spaces : measurement of superficial and of solid magnitudes, and all 

 other measurements whatever, depend on this.^ 



1 Tennyson's Day-dream. 



2 See the Chapter on the Relation of the Miud to Space and Time 

 (Chap. XXXVII.). 



3 This remark is made in-H. Spencer's First Principles. 



