[231] “From what is said already of the ignorance we are in of the essence of mind, it is evident that we are not able to know whether any mind be necessarily existent by a necessity à priori founded in its essence, as we have showed time and space to be. Some philosophers think that such a necessity may be demonstrated of God from the nature of perfection. For God being infinitely, that is, absolutely perfect, they say he must needs be necessarily existent; because, say they, necessary existence is one of the greatest of perfections. But I take this to be one of those false and imaginary arguments, that are founded in the abuse of certain terms; and of all others this word, perfection, seems to have suffered most this way. I wish I could clearly understand what these philosophers mean by the word perfection, when they thus say, that necessity of existence is perfection. Does perfection here signify the same thing that it does, when we say that God is infinitely good, omnipotent, omniscient? Surely perfections are properly asserted of the several powers that attend the essences of things, and not of anything else, but in a very unnatural and improper sense. Perfection is a term of relation, and its sense implies a fitness or agreement to some certain end, and most properly to some power in the thing that is denominated perfect. The term, as the etymology of it shows, is taken from the operation of artists. When an artist proposes to himself to make anything that shall be serviceable to a certain effect, his work is called more or less perfect, according as it agrees more or less with the design of the artist. From arts, by a similitude of sense, this word has been introduced into morality, and signifies that quality of an agent by which it is able to act agreeable to the end its actions tend to. The metaphysicians who reduce everything to transcendental considerations, have also translated this term into their science, and use it to signify the agreement that anything has with that idea, which it is required that thing should answer to. This perfection, therefore, belongs to those attributes that constitute the essence of a thing; and that being is properly called the most perfect which has all, the best, and each the completest in its kind of those attributes, which can be united in one essence. Perfection, therefore, belongs to the essence of things, and not properly to their existence; which is not a perfection of anything, no attribute of it, but only the mere constitution of it _in rerum natura_. Necessary existence, therefore, which is a mode of existence, is not a perfection, it being no attribute of the thing no more than existence is, which is a mode of it. But it may be said, that though necessary