John Ogilvie (1733-1813) was the author of An Essay on the Lyric Poetry of the Ancients (1762). "It is an observation, no doubt, familiar to your Lordship, that Genius is the offspring of Reason and Imagination properly moderated, and co-operating with united influence to promote the discovery, or the illustration of truth. Though it is certain that a separate province is assigned to each of these faculties, yet it often becomes a matter of the greatest difficulty to prevent them from making mutual encroachments, and from leading to extremes which are the more dangerous, because they are brought on by an imperceptible progression. -Reason in every mind is an uniform power, and its appearance is regular, and invariably permanent. "