By itself, this principle is trivial, of course, since anyone would agree that we should posit as many entities as we need. But there is more to the theory than this. Chatton explicitly breaks his Principle into two parts for purposes of justification and for application as well. His full theory can be thought of as a two-stage meditation on ontology. Stage one is given in version (2) above. To summarize stage one, we could say that language can serve as a guide to ontology in a certain way; setting aside the passage of time and the occurrence of motion – think of an ‘ontological snapshot’, if you like – and given a true proposition \(p\), we can investigate systematically the question of what kinds of things (what kind of ontological snapshot) are necessary to make \(p\) true, and hence we can conclude from \(p\)’s truth that those kinds things must exist. The question at stake here is truth-makers. What this first part of the Chatton Principle says is (1) that the truth-makers of propositions are things (res), and (2) that, under certain conditions, propositions are a guide to ontology.