Full Idea
Surely the mere fact that we may never know whether the continuum hypothesis is true or false is by itself just no reason to think that it doesn't have a truth value!
Gist of Idea
You can't deny a hypothesis a truth-value simply because we may never know it!
Source
Hilary Putnam (Mathematics without Foundations [1967])
Book Reference
'Philosophy of Mathematics: readings (2nd)', ed/tr. Benacerraf/Putnam [CUP 1983], p.305
A Reaction
This is Putnam in 1967. Things changed later. Personally I am with the younger man all they way, but I reserve the right to totally change my mind.