Page:Ferrier's Works Volume 1 - Institutes of Metaphysic (1875 ed.).djvu/458

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can be no ignorance of the ego or mind per se, because (by Prop. IX. Epistemology) there can be no knowledge of it; and because (by Prop. III. Agnoiology) there can be no ignorance of that of which there can be no knowledge.

1. This proposition, which is the obverse of the ninth of the epistemology, is designed to protect the reader, whom the latter proposition has saved