Full Idea
In the early 1930s many philosophers believed that the notion of truth could not be incorporated into a scientific conception of the world.
Gist of Idea
In the early 1930s many philosophers thought truth was not scientific
Source
Hartry Field (Tarski's Theory of Truth [1972], §3)
Book Reference
'The Nature of Truth', ed/tr. Lynch, Michael P. [MIT 2001], p.375
A Reaction
This leads on to an account of why Tarski's formal version was so important, and Field emphasises Tarski's physicalist metaphysic.