But to pursue this Thought still farther; Every living Creature, considered in it self, has many very complicated Parts, that are exact copies of some other Parts which it possesses, and which are complicated in the same Manner.  One Eye would have been sufficient for the Subsistence and Preservation of an Animal; but in order to better his Condition, we see another placed with a Mathematical Exactness in the same most advantageous Situation, and in every particular of the same Size and Texture.  Is it possible for Chance to be thus delicate and uniform in her Operations?  Should a Million of Dice turn up twice together the same Number, the Wonder would be nothing in comparison with this.  But when we see this Similitude and Resemblance in the Arm, the Hand, the Fingers; when we see one half of the Body entirely correspond with the other in all those minute Strokes, without which a Man might have very well subsisted; nay, when we often see a single Part repeated an hundred times in the same Body, notwithstanding it consists of the most intricate weaving of numberless Fibres, and these Parts differing still in Magnitude, as the Convenience of their particular Situation requires; sure a Man must have a strange Cast of Understanding, who does not discover the Finger of God in so wonderful a Work.  These Duplicates in those Parts of the Body, without which a Man might have very well subsisted, though not so well as with them, are a plain Demonstration of an all-wise Contriver; as those more numerous Copyings, which are found among the Vessels of the same Body, are evident Demonstrations that they could not be the Work of Chance.  This Argument receives additional Strength, if we apply it to every Animal and Insect within our Knowledge, as well as to those numberless living Creatures that are Objects too minute for a Human Eye; and if we consider how the several Species in this whole World of Life resemble one another in very many Particulars, so far as is convenient for their respective States of Existence; it is much more probable that an hundred Million of Dice should be casually thrown a hundred Million of Times in the same number, than that the Body of any single Animal should be produced by the fortuitous Concourse of Matter.  And that the like Chance should arise in innumerable Instances, requires a degree of Credulity that is not under the direction of Common Sense. [We may carry this Consideration yet further, if we reflect on the two Sexes in every living Species, with their Resemblances to each other, and those particular Distinctions that were necessary for the keeping up of this great World of Life.]

There are many more Demonstrations of a Supreme Being, and of his transcendent Wisdom, Power, and Goodness in the Formation of the Body of a living Creature, for which I refer my Reader to other Writings, particularly to the Sixth Book of the Poem, entitled Creation, [1] where the Anatomy of the human Body is described with great Perspicuity and Elegance.  I have been particular on the Thought which runs through this Speculation, because I have not seen it enlarged upon by others.