New Theory of Vision: Distance, Points and Minima
‘My design’, writes Berkeley in the opening section of the N.T.V., ‘is to shew the manner wherein we perceive by sight the distance, magnitude, and situation of objects. Also to consider the difference there is betwixt the ideas of sight and touch, and whether there be any idea common to both senses.’ Berkeley is well informed concerning the theories of his day. He knows the work of Locke’s Dublin-based friend and correspondent, William Molyneux (Dioptrics 1692), Locke’s own work on vision in his Essay Concerning Human Understanding and Nicolas Malebranche’s De la recherche de la vérité. As the ‘design’ makes clear, Berkeley’s concern is not narrowly psychological or physiological.
KeywordsRetina Expense Cataract Clarification Metaphor
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