Doubt

Definition and stakes

Portrait of Berthold Auerbach Berthold Auerbach,  Spinoza: A novel (1882)

“ How do you know that you really exist? Here you are at the end of doubt, and here a still, small voice cries to you, 'I, I am, for I think, I doubt my being; I, the thought, the doubt within me, I exist, even if all around me disappear in illusion and shadow.' Begin with doubt and you can stop at no arbitrary resting-place. ”
Source: Wikisource

Portrait of Alfred H. Lloyd Alfred H. Lloyd,  The will to doubt

“ Also, if anybody is amazed to hear mention of facts about doubt, as if doubt should not somehow submit to its own nostrum, let him merely reflect that, strangely enough, nothing is quite so indubitable as doubt, nothing so convincing as the reasons for doubt. Let me not be too subtle, but to doubt doubt is only to affirm it, and somehow—whether for good or ill need not now be said—all the negative things of life possess a peculiar certainty, and are all most easily proved. ”
Source: Gutenberg

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