If this doctrine be true, it is idle to talk about free-agency, for there is no such thing as agency in the world. It is true, there is a thing which we call volition, or an act of the mind; but this does not produce the external change by which it is followed. The two events co-exist, but there is no connecting tie between them. “They are _conjoined_, but not connected.” In short, according to this scheme, all things are equally free, and all equally necessary. In other words, there is neither freedom nor necessity in the usual acceptation of the terms; and the whole controversy concerning them, which has agitated the learned for so many ages, dwindles down into a mere empty and noisy logomachy. Indeed, this is the conclusion to which Mr. Hume himself comes; expressly maintaining that the controversy in question has been a dispute about words. We are not to suppose from this, however, that he forbears to give a definition of liberty. His idea of free-agency is precisely that of Hobbes, and so many others before him. “By liberty,” says he, “we can only mean a power of _acting or not acting according to the determination of the will_: that is, if we choose to remain at rest, we may; if we choose to move, we also may.”(46) Such he declares is all that can possibly be meant by the term _liberty_; and hence it follows that any other idea of it is a mere dream. The coolness of this assumption is admirable; but it is fully equalled by the conclusion which follows. If we will observe these two circumstances, says he, and thereby render our definition intelligible, Mr. Hume is perfectly persuaded “that all mankind will be found of one opinion with regard to it.” If Mr. Hume had closely looked into the great productions of his own school, he would have seen the utter improbability, that necessitarians themselves would ever concur in such a notion of liberty.(47) If Mr. Hume’s scheme were correct, it would seem that nothing could be stable or fixed; mind would be destitute of energy to move within its own sphere, or to bind matter in its orbit. All things would seem to be in a loose, disconnected, and fluctuating state. But this is not the view which he had of the matter. Though he denied that there is any connecting link among events, yet he insisted that the connexion subsisting among them is fixed and unalterable. “Let any one define a cause,” says he, “without comprehending, as part of the definition, a _necessary connexion_ with its effect; and let him show distinctly the origin of the idea expressed by the definition, and I shall readily give up the whole controversy.”(48) This is the philosopher who has so often told us, that events are “conjoined, not connected.”