If, accordingly, it can be shown that the actual procedures by which the most authentic and de- pendable knowledge is attained have completely surrendered the separation of knowing and doing jif it can be shown that overtly executed operations of interaction are requisite to obtain the knowledge called scientific, the chief fortress of the classic philosophical tradition crumbles into dust. With this destruction disappears also the reason for which some objects, as fixed in themselves, out of and above the course of human experience and its consequences, have been set in opposition to the temporal and concrete world in which we live.