Page:Ferrier's Works Volume 1 - Institutes of Metaphysic (1875 ed.).djvu/447

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things out of all relation to a mind, subject, or self, cannot possibly be known (Prop. IV. Epistemology). But there can be no ignorance of what cannot possibly be known (Prop. III. Agnoiology.) Therefore we cannot be ignorant of material things out of all relation to a mind, subject, or self; in other words, there can be no ignorance of matter per se.

1. This proposition is merely a special application of the preceding more general theorem. But in