Preconception

Definition and stakes

Portrait of Diogenes Laërtius Diogenes Laërtius,  Lives of the Eminent Philosophers… (1925)

“ Hence it is from plain facts that we must start when we draw inferences about the unknown. [47] For all our notions are derived from perceptions, either by actual contact or by analogy, or resemblance, or composition, with some slight aid from reasoning. And the objects presented to mad-men [48] and to people in dreams are true, for they produce effects – i.e. movements in the mind – which that which is unreal never does.
33. By preconception they mean a sort of apprehension or a right opinion or notion, or universal idea stored in the mind
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Source: Wikisource

Portrait of Delia Salter Bacon Delia Salter Bacon,  The Philosophy of the Plays of Shakspere Unfolded

“ The difference, then, between the first hasty conceptions and rude theories of the nature of things,—the difference between the preconceptions which make the first steps of the human mind towards the attainment of truth, and those conceptions and axioms which are properly abstracted from things, and which correspond to their natures, is the difference in which science begins. ”
Source: Gutenberg

Jaroslav Císař,  Mind (1924)

“ If it better satisfies our metaphysical preconceptions and habits, or preferences, we shall not commit any error if by the external world we understand some common source of percepts, the action of which on cognately constituted minds gives rise to analogous states within these minds ”
Source: Wikisource

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