382 Appendix 



"creates a current of affection because of services ren- 

 dered." 21 



"Every one recognizes," says Pillon in his turn, "that 

 the love of parents for their children exceeds in intensity 

 the children's love for the parents, and that of the two 

 parents it is the mother whose love is stronger for her 

 child. . . . The reason is that in the mother's case much 

 more than with the father the love for the child is nour- 

 ished and stimulated, because of her special functions, 

 that is, by the constant performance of the actions it 

 dictates." 28 



But mother-love and mutual love within the family in 

 general, owing its origin to certain relations grown into 

 habit, represents only one particular case of a universal 

 law. For every other relation to person or things (no 

 matter how special) which becomes in the slightest 

 degree a habit finally appears for this very reason as 

 something "desired." In every environmental relation 

 whether general or particular is verified Lehmann's law 

 of the "indispensability of the customary," which this in- 

 vestigator established for every stimulus to which one 

 becomes accustomed and whose cessation arouses a need 

 for its presence. 29 



"I have a small clock in my room," a friend once 

 wrote to G. E. Miiller, "which will not run quite twenty- 

 four hours with one winding. It often happens therefore 

 that it stops. Whenever this occurs I notice it at once, 

 whereas of course I do not hear it at all when it is 



27 Ribot, Psych, des sent., p. 286. 



28 F. Pillon, "Sur la memoire et 1'imagination affective," Annee 

 bhilosophique, XVII, 1903, pp. 69-70. Paris, Alcan, 1907. 



"A. Lehmann, Die Hauptgesetze des mcnschlichen Gefiihlslebens, 

 pp. 194 ff. Leipsic, Reisland, 1892. 



