• Our acceptance of an ontology is, I think, similar in principle to our acceptance of a scientific theory, say a system of physics;we adopt, at least insofar as we are reasonable, the simplest conceptual scheme into which the disordered fragments of raw experience can be fitted and arranged.

    Willard Van Orman Quine, Roger F. Gibson (2004). “Quintessence: Basic Readings from the Philosophy of W.V. Quine”, p.190, Harvard University Press