Page:Ferrier's Works Volume 1 - Institutes of Metaphysic (1875 ed.).djvu/391

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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." But that which can be known or conceived only when a correlative is known or conceived along with it cannot be known or conceived by itself. Therefore there is no mere relative in cognition; in other words, the relative per se or by itself, is, of necessity, unknowable and unknown.

1. Although this and the three following propositions are mere repetitions of the four immediately