3X2 SIR WILLIAM Hamilton's philosophy: 



If. Of these the first aifords a comraon principle of the pos- 

 sibility of mutual suggestion for all out mental movements, however 

 different in character, however remote in the times of their occurrence. 

 It may be called the Law of Associdbility or Possible CorSuggestiattf 

 and stated as follows : All thoughts of the same mental subject are 

 associable or capable 0/ suggesting each other > 



II. The second unity affords the first law of actual reproduction, 

 which may be named the law of Repetition or Direct Remembrance, 

 and stated as follows : Thoughts co-identical in modification, but 

 differing in time, tend to suggest each ether. 



III. From the third unity arises the second law of actual repro- 

 duction, which I call the Law of Redintegration, Indirect Remem' 

 brance or Reminiscence, and which may be stated as follows : Thoughts, 

 once co-identical in time, are, however different as mental modes, 

 again suggestive of each other, and that in the mutual order which 

 they originally held {Reid''s Works, pp. 912-3). 



Under these two general laws, by which the reproduction of mental 

 states is actually determined, mry be easily included, as special mstaa- 

 ces, the laws (1) of Similars, comprehending the laws of Analogy 

 and Affinity, (2) of Contrast, (3) of Co-adjacency, comprehending 

 Cause and Effect, "Whole and Parts, Substance and Attributes, Sign 

 and Signified {Ibid, pp. 913-6). 



Moreover these two general laws "are to be regarded as abstract or 

 primary principles which are frequently crossed and superseded by a 

 secondary or concrete principle. This principle, though scarcely de- 

 serving the name of a law, may be styled the Law of Preference and 

 stated in the following form : Thoughts are suggested, not merely by 

 force of the general subjective relation subsisting between themselves ; 

 they are also suggested in proportion to the relation of interest (from 

 whatever source) in which these stand to the individual mind. 



Fourth Faculty — The Representative. 

 But the knowledge thus recalled can be held up before the mind, 

 and this act implies further a faculty of Representation, the Imagina- 

 tion of ordinary language (II., pp. 259 — 276). 



Fifth Faculty — The Elaborative. 

 . These four faculties however merely furnish the materials on which 

 the mind operates by a higher faculty, of which the rudimentary 

 function is comparison, and of which also conception, judgment, 

 reasoning, abstraction, generalisation are only different acts. 



