Full Idea
Tarski says "we may remain naïve realists or idealists, empiricists or metaphysicians… The semantic conception is completely neutral toward all these issues."
Clarification
Tarski was a famous Polish logician (fl. c. 1944). The 'semantic conception' is his theory of truth as a relationship within languages
Gist of Idea
Tarski says that his semantic theory of truth is completely neutral about all metaphysics
Source
report of Alfred Tarski (The Concept of Truth for Formalized Languages [1933]) by Susan Haack - Philosophy of Logics 7.5
Book Reference
Haack,Susan: 'Philosophy of Logics' [CUP 1980], p.111