 In any case, for Wolff, the expression “to provide the reason of something” can be taken in two different ways. On the one hand, if the something for which a reason is provided is regarded solely as a possible thing, then “reason” stands to account for why that thing (as a possible thing) is the possible thing that it is. According to Wolff, every being is endowed with an essential nature. Possible things have natures insofar as they as are comprised of a number of non-contradictory determinations or predicates. Different sets of determinations, and the relationships among these determinations, serve as the principle of individualization within the realm of possible things. Hence, to provide the reason for a possible thing is simply to enumerate the determinations that make that thing the kind of possible thing that it is. A reason, in this sense, is regarded by Wolff as ratio essendi or the “reason of being”.