HKB
perceptible here because everything is inside us. Of course we do not always interpret it in an adequate manner, but at least we cannot fail to be conscious of it.
Moreover, the idea of force bears the mark of its origin in an apparent way. In fact, it implies the idea of power which, in its turn, does not come without those of ascendancy, mastership and domination, and their corollaries, dependence and subordination; now the relations expressed by all these ideas are eminently social. It is society which classifies beings into superiors and inferiors, into commanding masters and obeying servants; it is society which confers upon the former the singular property which makes the command efficacious and which makes power. So everything tends to prove that the first powers of which the human mind had any idea were those which societies have established in organizing themselves: it is in their image that the powers of the physical world have been conceived. Also, men have never succeeded in imagining themselves as forces mistress over the bodies in which they reside, except by introducing concepts taken from social life. In fact, these must be distinguished from their physical doubles and must be attributed a dignity superior to that of these latter; in a word, they must think of themselves as souls. As a matter of fact, men have always given the form of souls to the forces which they believe that they are. But we know that the soul is quite another thing from a name given to the abstract faculty of moving, thinking and feeling; before all, it is a religious principle, a particular aspect of the collective force. In fine, a man feels that he has a soul, and consequently a force, because he is a social being. Though an animal moves its members just as we do, and though it has the same power as we over its muscles, nothing authorizes us to suppose that it is conscious of itself as an active and efficacious cause. This is because it does not have, or, to speak more exactly, does not attribute to itself a soul. But if it does not attribute a soul to itself, it is because it does not participate in a social life comparable to that of men. Among animals, there is nothing resembling a civilization.[1188]
But the notion of force is not all of the principle of causality. This consists in a judgment stating that every force develops in a definite manner, and that the state in which it is at each particular moment of its existence predetermines the next state. The former is called cause, the latter, effect, and the causal judgment affirms the existence of a necessary connection between these two moments for every force. The mind posits this connection before having any proofs of it, under the empire of a sort of constraint from which it cannot free itself; it postulates it, as they say, a priori.
Empiricism has never succeeded in accounting for this apriorism and necessity. Philosophers of this school have never been able to explain how an association of ideas, reinforced by habit, could produce more than an expectation or a stronger or weaker predisposition on the part of ideas to appear in a determined order. But the principle of causality has quite another character. It is not merely an imminent tendency of our thought to take certain forms; it is an external norm, superior to the flow of our representations, which it dominates and rules imperatively. It is invested with an authority which binds the mind and surpasses it, which is as much as to say that the mind is not its artisan. In this connection, it is useless to substitute hereditary habit for individual habit, for habit does not change its nature by lasting longer than one man's life; it is merely stronger. An instinct is not a rule.