Letters to Editor | Published:

Philosophy and Modern Science

Naturevolume 135page912 (1935) | Download Citation

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Abstract

THE necessity for condensed expression is, I think, responsible for the questions raised by Dr. Jeffreys. I admit (indeed, insist on) the distinction between sensations and concepts, but left it unstated because I thought it was implied in the language used. The principle of rejection of unobservables must refer only to concepts; we cannot speak of observing sensations because a sensation is an observation, not a thing to be observed. I cannot reject a sensation of whiteness which may come to me, but I can reject the concept, ghost. I do not share Dr. Jeffreys's objection to the phrase, “observing a concept” (for example, observing Neptune). It is unambiguous and far more concise than any alternative which his letter suggests.

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  1. Imperial College of Science, London, S.W.7

    • HERBERT DINGLE

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https://doi.org/10.1038/135912a0

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