That every effect must have a cause, is the maxim upon which the necessitarian takes his stand, and from which he delights to draw his favourite conclusion. It may be well, therefore, to examine the argument which has been so frequently erected upon the maxim in question. Although from various considerations, it has been very justly concluded, that there is somewhere a lurking fallacy in the argument, yet it has not been precisely shown where the fallacy lies. Suspicion has been thrown over it: nay, abundant reason has been shown why it should be rejected; but yet the fallacy of it should be dragged from the place of its concealment, and laid open in a clear light, so as to render it apparent to every eye. If it is a sophism, it certainly can be exposed, and it should be done. In order to do this, it will be necessary to consider the nature and use of the maxim, that every effect must have a cause. I am aware, that no necessitarian of the present day, would choose to express this maxim as I have expressed it; for in such a form Mr. Hume has shown that it contains no information, and is indeed a most insignificant proposition. And, in truth, what does it amount to? Cause and effect are correlative terms; and when we speak of an effect, we mean something that is produced by a cause; and hence, the famous proposition, that every effect has a cause, amounts only to this, that every effect is an effect! After Mr. Hume had caused the subject to be viewed in this light, the usual mode of expression was dropped; and it has now become the common practice to say, that there is no change in nature without a cause. But I do not see how this mends the matter _in the least:_ it may disguise, but it does not alter the nature or real import of the maxim in question. For when it is said that every change has a cause, it is evident that a change is conceived of under the idea of an effect. It is supposed to be produced by a cause, and therefore it must be considered as an effect; and if the idea remains precisely the same, I do not see that giving it a new name, can possibly make any difference in the meaning of the proposition.