Quote by Quine, Willard Van Orman
"The ontology of a theory is what one must posit to make the theory true."
"The ontology of a theory is what one must posit to make the theory true."
"To be is to be the value of a variable."
"The problem of induction is to justify the rules by which we project unobserved instances from observed ones."
"Ontology is what one says exists; ideology is how one says one determines what exists."
"There is no fact of the matter about how language actually carves up the world."