"As to the eye of the body, objects appear great or small, not so much according to their real dimensions as according to the nearness or distance of their situation; so do they likewise to what may be called the natural eye of the mind: and we remedy the defects of both these organs pretty much in the same manner."
— Smith, Adam (1723-1790)
(text from OLL; cf. Liberty Fund edition; cf. p. 210 in 2nd ed.)
Text from The Theory of Moral Sentiments. By Adam Smith, Professor of Moral Philosophy in the University of Glasgow. 2nd ed. (London: Printed for A. Millar, in the Strand; and A. Kincaid and J. Bell, in Edinburgh, 1761). <Link to ESTC><Link to Google Books>
Reading Adam Smith, The Theory of Moral Sentiments, ed. D.D. Raphael and A.L. Macfie (Indianapolis: Liberty Fund, 1984).