Full Idea
I have always said that a belief was knowledge if it was (i) true, (ii) certain, (iii) obtained by a reliable process.
Gist of Idea
Belief is knowledge if it is true, certain, and obtained by a reliable process
Source
Frank P. Ramsey (Knowledge [1929]), quoted by Juan Comesaņa - Reliabilism 2
Book Reference
'Routledge Companion to Epistemology', ed/tr. Bernecker,S/Pritchard,D [Routledge 2014], p.176
A Reaction
Remarkable to be addressing the Gettier problem at that date, but Russell had flirted with the problem. Ramsey says the production of the belief must be reliable, rather than the justification for the belief. Note that he wants certainty.
Related Idea
Idea 5429 True belief is not knowledge when it is deduced from false belief [Russell]