Full Idea
The only way to preserve knowledge of homely truths, the truths everyone takes themselves to know, is to abandon closure.
Gist of Idea
The only way to preserve our homely truths is to abandon closure
Source
Fred Dretske (The Case against Closure (and reply) [2005], p.32)
Book Reference
'Contemporary Debates in Epistemology (2nd ed)', ed/tr. Steup/Turri/Sosa [Wiley Blackwell 2014], p.32
A Reaction
His point is that knowledge of homely truths seems to imply knowledge of the background facts needed to support them, which he takes to be an unreasonable requirement. I recommend pursuing contextualism, rather than abandoning closure.