Occam asks in one of his writings (_in libr. I. Sentent. Dist. II. Quæst. 4_), “Whether what is immediately and proximately denoted by the universal and by the generic name is a real thing outside of the soul, something intrinsic and essential in the things to which it is common and which are called by its name, and yet in reality distinguished from them.” This definition of the Realists is given more in detail by Occam as follows: “As to this question, one opinion is that each generic designation or universal is a thing really existing outside of the soul in each and every individual, and that the Being (_essentia_) of each individual is really distinguished from each individual” (_i.e._ from its individuality), “and from each universal. Thus man, the universal, is a true thing outside of the soul, which exists in reality in each human being, but is distinguished from each human being, from Universal living nature, and from the universal substance, and in this way from all species and genera, those that are subordinate as well as those that are not subordinate.” The universal, the common designation of all the individuals, is therefore, according to this, not identical with the Self, the ultimate point of subjectivity. “As many universal predicables as there are of any individual thing”—_e.g._ humanity, reason, Being, life, quality, &c.—“so many really different things there are in nature, each of which is really distinct from the other and from that individual, and all these things are in no wise multiplied in themselves, however much the separate predicables are multiplied, which are in every individual of the same kind.” That is the most uncompromising way of stating the independence and isolation of every universal quality in a thing. Occam refutes this, saying: “Nothing which is one in number can, without being changed or multiplied, be present in several subjects or individuals. Science invariably restricts itself to propositions regarding the known; it is, therefore, a matter of no moment whether the terms of the propositions are known things outside of the soul, or only in the soul; and therefore it is not necessary for the sake of science to assume universal things, really distinct from individual things.”