ESTHETOLOGY, OR THE SCIENCE OF ACTIVITIES 

 DESIGNED TO GIVE PLEASURE 



In pre\noiis reports the five grand classes of human activities 

 have been set forth as those connected with pleasures, indus- 

 tries, institutions, languages, and opinions. These pentalogic 

 activities give rise to live sciences, whicli have been designated 

 as esthetolog'y, technology, sociolog}', philology, ;uid sophi- 

 olog-v. In order that the nature of these sciences mav be 

 made clearer, it becomes necessary to consider them severally; 

 and I now propose to define the science of esthetology by 

 showing what is included therein as the subject-matter of the 

 activities is classified. It sliould l)e kept in mind that the clas- 

 sification is g-eneral, and is equally applicable to primitive 

 peoples like the American aborigines and to more advanced 

 peoples. Tlierefore illustrations are drawn from hig-her cidture 

 as well as from lower. 



General Considerations 



.Qualities arise out of tlie properties of bodies when they 

 are considered in relation to human purposes. To understand 

 this declaration it is necessary to consider the essentials of 

 properties and qualities and carefully to note the di-stinction 

 between them. Tlie essentials of tlie properties are unity, 

 extension, speed, persistence, and consciousness, wiiicli under 

 relations give rise to projierties that can be measiu'cd, wliicli 

 are designated as (juantities. These quantities are number, 

 space, motion, time, and judgment. 



Number is many in one, and the enumeration of the many 

 is the measurino- of the number contained in the sum, wliich 

 is a unity. Numbei', therefore, is many in one. 



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