56 CEREBRAL FORCES. [i. 



with the effort of the cerebral forces to complete the imperfect 

 material sensation which the soul foresees, or in other words to 

 render it perfect, and realize the anticipation (83, 83). 



If, consequently, a desire or aversion, by its influence on the 

 brain, manifests actions in the economy, they are compounded : 

 1. Of the actions excited by the material ideas of a foreseeing 

 and expectation. 3. Of the actions excited by the impression of 

 pleasure or pain in the brain. 3. Of the actions resulting from 

 the eflbrt of the cerebral forces of the brain, to produce the 

 entire material sensation, which is anticipated, or the contrary 

 to it (84) j and the stronger all these are, the more energetic 

 the actions of the desire or aversion (26). 



88. The conceptions which are necessary to the excitement 

 of desires and aversions, namely, the incitements of the feelings 

 [Triebfedern des Gemiiths] (83), pleasure and pain, are in so 

 far as they excite the effort of the conceptive force, either sen- 

 sational (66) or intellectual {76, 80). When they are sensa- 

 tional, that is to say, when they are true external sensations, 

 or other sensational conceptions (67), or foreseeings (73), they 

 are termed sensational stimuli {sensual stimuli, incitements of 

 the flesh) ; if, on the contrary, they belong to the understand- 

 ing, they are motives, reasons. Sensual gratification or titilla- 

 tion [Kitzel], and smarting are, consequently, sensational sti- 

 muli (80). 



89. The sensational stimuli (which must by no means be con- 

 founded with mere impressions or nerve-feelings) (31, 32, 121), 

 excite desires and aversions, which are termed sensational (88); 

 on the contrary, motives are termed intellectual {desires or 

 aversions of the will). The development of a sensational desire 

 or aversion from sensational stimuli may be considered in 

 various ways. Various kinds of conceptions, anticipations, ex- 

 pectations, and efforts of the conceptive force (84, 86), are 

 requisite, all which impress their material ideas and impres- 

 sions in the brain (25). On one hand, the sensational desires 

 and conceptions may result from sensational stimuli, organically 

 and necessarily (as external sensations result from their external 

 impressions), according to the laws of action of external impres- 

 sions, and be equally sensational. Or the sensational desires 

 and aversions do not result from these stimuli organically and 

 necessarily; and we can only explain their excitation by at the 



