Eyes Made of Green Glass

If all eyes were made of green glass, and if all that seems white was really green, who would be the wiser?

Heinrich von Kleist, Letter to Wilhelmine von Zenge (1801). Paraphrased by John le Carré in Call for the Dead (2012).

Google Books: https://books.google.com/books?id=01DiY_m80GoC&pg=PT124&lpg=PT124

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