James Frederick Ferrier,
Philosophical Works of the Late James Frederick Ferrier
(1875)
“ THE RELATIVE IN COGNITION. There is no mere relative in cognition: in other words, the relative per se, or by itself is, of necessity, unknowable and unknown. DEMONSTRATION. The demonstration commences with the definition of the relative, which is nearly identical with that of the phenomenal. "The relative is whatever can be known or conceived only when a correlative is known or conceived along with it." ”
