Tacit knowledge, accumulated in dialectic individual-environment interaction, is very difficult to articulate (Polanyi, 1952, 1966). Husserl (1977) believed in attaining true knowledge through "epoche" or "bracketing," that is, seeing things as they are and grasping them through a kind of direct insight. Pure phenomenological experience is even claimed to precede cognition (Nishida, 1970).