What is pertaining to a faculty or faculties. In short, there is no facultative plurality in the mind; it is a single organ of true judgment for all purposes, cognitive or practical. J. Martineau called?

facultative — (Physiol.) Pertaining to a faculty or faculties. In short, there is no facultative plurality in the mind; it is a single organ of true judgment for all purposes, cognitive or practical. J. Martineau. (Webster's 1913.)

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