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The imagination of a eunuch dwells more and longer upon the material of love than that of man or woman ... supplying, so far as he can, by speculation, the place of pleasures he can no longer enjoy.

John Quincy Adams (1876). “Memoirs of John Quincy Adams: Comprising Portions of His Diary from 1795 to 1848”, p.353
The imagination of a eunuch dwells more and longer upon the material of love than that of man or woman ... supplying, so far as he can, by speculation, the place of pleasures he can no longer enjoy.