The theory of descriptions, mentioned above, was first set forth in my article 'On Denoting' in Mind, 1905 . This doctrine struck the then editor as so preposterous that he begged me to reconsider it and not to demand its publication as it stood. I, however, was persuaded of its soundness and refused to give way. It was afterwards generally accepted, and came to be thought my most important contribution to logic.
Source: My Philosophical Development, chap. 7：1959．
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