David Hume : John Locke
Jean Piaget's research into the development of cognitive schemas provides empirical support for the empiricist position. Piaget's experiments demonstrated that children incorporate experience to generate a progressively more logical construct concerning the operation of reality. That is, during the development of cognitive rationality, experiential information is assimilated and accommodated in a progression through increasingly more accurate reality-representational stages.
1. Markie, Peter, "Rationalism vs. Empiricism", The Stanford Encyclopedia of Philosophy (Fall 2004 Edition), Edward N. Zalta (ed.), URL.