Full Idea
It is agreed on all hands that the classical epistemological project, conceived as one of deductively validating physical knowledge from indubitable sensory data, cannot succeed.
Gist of Idea
It seems impossible to logically deduce physical knowledge from indubitable sense data
Source
Jaegwon Kim (What is 'naturalized epistemology'? [1988], p.304)
Book Reference
'Epistemology - An Anthology', ed/tr. Sosa,E. /Kim,J. [Blackwell 2000], p.304
A Reaction
This is the 'Enlightenment Project', which had a parallel in morality. Kim refers to the difficulty as 'The Humean Predicament'. Hume also hoped that induction might be deductive. One obvious move is to expand from 'deduction' to 'reason'.