No better illustration of the fallacy of this prejudice could be furnished, than that which Edwards has given in his definition of philosophical or metaphysical necessity. Under this definition, as we have seen, he has included the being of a God, which is said to be necessary, because he has existed from all eternity, unmade and uncaused; and also the existence of an effect, which is said to be necessary, because it necessarily results from the operation of a cause. Now, these two ideas stand in direct opposition to each other; and the only thing they have in common is the name. And yet President Edwards reasons from the one to the other! If he can, in any way, reach the name, this seems to satisfy him. The _thing_ in dispute is entirely overlooked. If we say that choice is produced by choice, then he contends it is an effect, and consequently necessary. If we deny that choice is produced by choice, then it is necessary any how; not because it is produced by a cause, but because it is independent of a cause, being neither produced nor prevented by it. It makes no difference with this great champion of necessity, whether choice is said to be produced by choice or not; for, on either of these opposite suppositions, he can show that our volitions are necessary. The absence of the very circumstance which makes it necessary in the one case, is that which makes it necessary in the other. Is choice produced by choice? Then this dependence of choice upon choice, shows it to be necessary. Is choice _not_ produced by choice? Then this independence of choice upon choice is the very thing which shows it to be necessary! Thus this great champion of necessity, just passes from one meaning of the term to another, without the least regard to the point in dispute, or to the logical coherency of his argument. Surely, if "a reluctant world has bowed in homage" to his logic, it must have been because the world has been too indolent to pry into the sophisms with which it swarms. It is only in his onsets upon error, that the might of his resistless logic is felt; in the defence of his own system, he does not reason at all, he merely rambles. Indeed, with all his gigantic power, he was compelled to reel and stagger under the burden of such a cause. SECTION XIII. OF NATURAL AND MORAL NECESSITY. I HAVE already said many things bearing upon the famous distinction between natural and moral necessity; but this distinction is regarded as so important by its advocates, that it deserves a separate notice. This I shall proceed to give it.