Full Idea
If theories are genuinely incommensurable why should I be faced with the problem of choosing between them? Why not believe them all?
Gist of Idea
If theories are really incommensurable, we could believe them all
Source
W.H. Newton-Smith (The Rationality of Science [1981], VII.1)
Book Reference
Newton-Smith,W.H.: 'The Rationality of Science' [RKP 1981], p.148