ABSTRACT
Indeed, to all who are not blinded by prejudice, the impossibility of establishing any real division between the two may be clearly demonstrated. That progressive complication of the instincts, which, as the people have found, involves a progressive diminution of their purely automatic character, likewise involves a simultaneous commencement of Memory and Reason. To render the argument quite conclusive, it needs but to show, by a special synthesis, that the establishment of every generalization, simple or complex, concrete or abstract, is perfectly explicable in conformity with the principle hitherto traced. The defenders of the hypothesis that knowledge wholly results from the experiences of the individual, ignoring as they do that mental evolution which is due to the autogenous development of the nervous system, fall into an error as great as if they were to ascribe all bodily growth to exercise, and none to the innate tendency to assume the adult form.
