EXPERIENCE AND INTUITIONS 239 In short, Spencer maintained that intellectual and moral intuitions had arisen from gradually organised and inherited experience. "What the transcendentalist called a priori principles the evolutionist regards as a priori indeed to the individual, but a posteriori to the race; that is as race experiences which in the individual appear as intuitions/51 This was an ingenious eirenicon, but it does not seem to satisfy all the philosophers, those namely who feel that intuitions—both intellectual and moral—have a validity, universality, and compelling necessity which cannot be accounted for if they are simply the outcome of race-experience. The only alternative seems to be to say that their validity depends on the nature of mind itself, or, what comes to the same thing, because they are in harmony with the spiritual principle in nature. Nor are the biologists quite satisfied with Spencer's reconciliation, between empiricism and apriorism, for, in the form he gave it, there is the tacit assumption that results of experience are as such transmissible. But this is biologically a hazardous assumption. The only alternative would be to suppose that the advance to rational intuitions came about by the selection of variations towards that type of mental constitution which rational and moral intuitions express—a probably very slow process which would be sheltered by the individual moulding himself to the social heritage in which many results of experience are registered and entailed independently of any germ- plasm. It is possible that there has been an under- estimate of the extent to which what are regarded.as 1 W. H. Hudson, Introduction to the Philosophy of Herbert Spencer, f the human race, have been