An object is frequently not seen, from not knowing how to see it, rather than from any defect of the organ of vision.
Charles Babbage (1830). “Reflections on the Decline of Science in England: And on Some of Its Causes, by Charles Babbage (1830). To which is Added On the Alleged Decline of Science in England, by a Foreigner (Gerard Moll) with a Foreword by Michael Faraday (1831).”, p.210
