proper the first laying an invincible claim to be the foundation of the second, which are ceaselessly obliged in turn to seek their own foundation, the justification of their method, and the purification of their history, in the teeth of 'psychologism', 'sociologism', and 'historicism'; and that which lies at the root of the endless controversy between philosophy, which objects to the na vet with which the human sciences try to provide their own foundation, and those same human sciences which claim as their rightful object what would formerly have constituted thedomain of philosophy.