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Quotation from Science and Hypothesis by Henri Poincare
“The true relations between these real objects are the only reality we can attain”
Science and Hypothesis, Part IV, Ch. X, trans. W. J. Greenstreet

From the defence of Fresnel's theory: its equations still hold after Maxwell, because they express real relations.
Citation: "The true relations between these real objects are the only reality we can attain" — Henri Poincare, Science and Hypothesis, Part IV, Ch. X, trans. W. J. Greenstreet. (id poincare-science-and-hypothesis-q8)
Portrait: Henri Poincaré, PA03199, Henri Manuel, Public domain.
