[Sidenote: _Non-existence of a fifth form of activity. Law; sociability._]
A fifth form of spiritual activity does not exist. It would be easy to show how all the other forms either do not possess the character of activity, or are verbal variants of the activities already examined, or are complex and derivative facts, in which the various activities are mingled, and are filled with particular and contingent contents.
The _juridical_ fact, for example, considered as what is called objective law, is derived both from the economic and from the logical activities. Law is a rule, a formula (whether oral or written matters little here) in which is fixed an economic relation willed by an individual or by a community, and this economic side at once unites it with and distinguishes it from moral activity. Take another example. Sociology (among the many meanings the word bears in our times) is sometimes conceived as the study of an original element, which is called _sociability._ Now what is it that distinguishes sociability, or the relations which are developed in a meeting of men, and not in a meeting of sub-human beings, if it be not just the various spiritual activities which exist among the former and which are supposed not to exist, or to exist only in a rudimentary degree, among the latter? Sociability, then, far from being an original, simple, irreducible conception, is very complex and complicated. A proof of this would be the impossibility, generally recognized, of enunciating a single law which could be described as purely sociological. Those that are improperly so called are shown to be either empirical historical observations, or spiritual laws, that is to say judgements into which the conceptions of the spiritual activities are translated, when they are not simply empty and indeterminate generalities, like the so-called law of evolution. Sometimes, too, nothing more is understood by "sociability" than "social rule," and so law; thus confounding sociology with the science or theory of law itself. Law, sociability, and similar concepts, are to be dealt with in a mode analogous to that employed by us in the consideration and analysis of historicity and technique.