In particular, that with which phenomenology was to oppose it so tenaciously was already present in its underlying structures: the original powers of the perceived and its correlation with language in the original forms of experience, the organization of objectivity on the basis of sign values, the secretly linguistic structure of the datum, the constitutive character of corporal spatiality, the importance of' finitude in the relation of man with truth, and in the foundation of' this relation, all this was involved in the genesis of positivism.