Page:Ferrier's Works Volume 1 - Institutes of Metaphysic (1875 ed.).djvu/328

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material universe and its qualities per se cannot be known or presented to the mind—(Props. IV. and V.) But what cannot be known or presented to the mind, cannot be thought of or represented by the mind—(Prop. XI.) Therefore the material universe, and all its qualities per se, are absolutely unthinkable as well as absolutely unknowable.

1. The introduction of this proposition, and the preceding one on which it rests, will not appear