[Sidenote: _Definition of law._] _Law_ is a volitional act, which has for content a _series_ or _class_ of actions. [Sidenote: _Philosophical and empirical concepts of society._] This definition excludes above all from the concept of law a determination that is generally considered essential to it, the determination of _society_; this amounts to saying that it also extends the concept of law to the case of the _isolated individual._ But in order that there may be no misunderstanding in relation to a point like this of the highest importance, it will be well to show that the word "society" has a double meaning, philosophical and empirical, and if we exclude its empirical sense from the concept of law, it would neither be possible nor our wish, to exclude its philosophical sense. Reality is unity and multiplicity together, and an individual is conceivable, in so far as he is compared with other individuals, and the process of reality is effective, in so far as individuals enter into relations with one another. Without multiplicity there would not be knowledge, action, art or thought, utility or morality; therefore the isolated individual, torn from the reality that constitutes him and that he constitutes, is something abstract and absurd. But he is no longer absurd, when understood in another way, with polemical intention against a false concept; as an individual not absolutely, but relatively isolated, in respect to certain contingent conditions which had wrongly been held essential: in which case the concept of society is conversely itself abstract and unreal. "Society," indeed, is also used to mean a multiplicity of beings of the same species, and it is evident that here an arbitrary element enters into the problem, for the naturalistic concept of sameness of species is arbitrary and approximative; hence the pretended sameness might fail and the society yet exist all the same. A man may not be able to find those who resemble him among a multitude of men and conduct himself as if they did not exist; but this does not prevent his living in the society of beings that are called natural, with his dog, his horse, with plants, with the earth, with the dead and with God. When he is placed in solitude or isolated from the other beings, said to belong to the same species as himself, that other society, or the communion with what remains to him of reality, will always continue, thus enabling him to continue his life of contemplation, of thought, of action and of morality. In order to understand the Spirit in its universality, we must separate it from contingencies, and society in the empirical sense is contingency, which the concept of the isolated individual (isolated from it and not from reality, from the _societas hominum,_ not from the _societas entium_), enables us to surpass. The great services which this concept has rendered to Logic, to Æsthetic and especially to Economy, are known, for the latter only began to develop