Chap. 3.] Cvmpkx Idtas. 427 



with a metaphyfician, the mind, or more properly 

 the modes of acting, the powers and faculties will ba 

 recollected. In all complex ideas, however, which arc 

 the immediate objects of fenie, and which are not de- 

 complex, or compofed of fuccefllve impreffions, the 

 more obvious qualities will ferve to mark the idea, and 

 identify it to every man 3 as the idea, horfe, tree, &c. 

 can never be differently apprehended. It is otherwife 

 with more abftract and remote terms ; the word virtu* 

 may be very widely conceived of by different perfons, 

 as the cuftoma of their countries, the courfe of their 

 Undies, or their turn of thinking, may determine j 

 hence in all arguments, terms Ihould be minutely de- 

 fined. 



All complex ideas are combinations of fimple 

 ideas aflbciated together, as will be explained in the 

 chapter of affociation. 



Befides this divifion of ideas into fimple and com- 

 plex, logicians have adopted others, which it may 

 be of fome ufe briefly to explain *. A principal di- 

 vifion is into fuftances and modes, that is, modifica- 

 tions of matter or forms of exiftence. 



Hence follows a divifion of modes into fimple and 

 mixed modes. Simple modes of duration, are whatever 

 diftinct ideas we have of any parts of it, as hours, days, 

 &c. &c. Simple modes of colour, are white, blue, 

 &c. &c. Simple modes of Jpace are any particular 

 lengths of it, as an inch, a foot", &c. Simple modes of 

 motion, are Hiding, walking, &c. It would be ufelefs 

 to enter into any more particulars of this kind, as thefe 

 diftin&ions are pointed out rather with a view to the 

 works of others than to the prefent treatife. I would 

 wifh to obferve, that the general terms colour, Jpace t 



* See Locke, B. 2. 



fcc. 



