"However, Piaget's achievements and the lessons of his failure are larger than separate critiques of his naturalism, his structuralism,or his conception of rationality can suggest.The idea of the human mind as a biological machine is not of his making ... ."

"Piaget's engagement with the exigencies of 'la realite' has been prodigously prolific. Asked how he had found time to write so much -- well over 20,000 pages -- Piaget replied that happily he had not needed to read the work of Piaget. Had he done so, he no doubt would have been reconvinced of his opinion that there is 'some truth in the statement of Bergson that a philosophical mind is generally dominated by a single personal idea which he strives to express in many ways in the course of his life, without ever succeeding fully.'"

ontogeny recapitulates phylogeny?

not really