Page:Ferrier's Works Volume 1 - Institutes of Metaphysic (1875 ed.).djvu/172

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qualities of matter by themselves are, equally with matter itself, an objective presentment without a subject. But it has been proved by Proposition II. that no objective can be known without a subjective or self being known along with it. Therefore, all the qualities of matter, by themselves, are absolutely unknowable.

1. In dealing with the question respecting our knowledge of material existence, psychology vacillates between two opinions. At times it sides with natural thinking, and affirms, in the terms set forth