Quote by Quine, Willard Van Orman
"Ontology is what one says exists; ideology is how one says one determines what exists."
"Ontology is what one says exists; ideology is how one says one determines what exists."
"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."
"There is no fact of the matter about how language actually carves up the world."
"We cannot significantly assert or deny that the space and time of physics are the same as the space and time of sense experience."