Full Idea
The attainment of settled beliefs is a progressive matter; there is no belief so settled as not to be exposed to further inquiry.
Gist of Idea
No belief can be so settled that it is not subject to further inquiry
Source
John Dewey (The Later Works (17 vols, ed Boydston) [1930], 12:16), quoted by David Hildebrand - Dewey 2 'Knowledge'
Book Reference
Hildebrand,David: 'Dewey' [One World 2008], p.61
A Reaction
A nice pragmatist mantra, but no scientists gets a research grant to prove facts which have been securely established for a very long time. It is neurotic to keep returning to check that you have locked your front door. Dewey introduced 'warranted'.