Full Idea
Quine's epistemological position is instrumentalist. Our theories are instruments we use to make predictions about observations.
Gist of Idea
For Quine, theories are instruments used to make predictions about observations
Source
report of Willard Quine (works [1961]) by Paul O'Grady - Relativism Ch.3
Book Reference
O'Grady,Paul: 'Relativism' [Acumen 2002], p.68
A Reaction
This is the pragmatist in Quine. It fits the evolutionary view to think that the bottom line is prediction. My theory about the Pelopponesian War seems an exception.