Bayesians (as the adherents of the subjective interpretation of the probability calculus now call themselves) ...
This ... I have combated for thirty-three years. Fundamentally, it springs from the same epistemic philosophy which attributes to the statement 'I know that snow is white' a greater epistemic dignity than to the statement 'snow is white'.
I do not see any reason why we should not attribute still greater epistemic dignity to the statement 'In the light of all the evidence available to me I believe that it is rational to believe that snow is white.' The same could be done, of course, with probability statements.
Popper on Bayesians
_Objective Knowledge_ p 141