Pursued upon this comprehensive scale, the study of history is the study of human nature. But some have continued to reject it, not upon any objection to the quality of the knowledge gained--but simply on the ground of its limited extent; contending that in public and political transactions, such as compose the matter of history, human nature exhibits itself upon too narrow a scale and under too monotonous an aspect; that under different names, and in connection with different dates and regions, events virtually the same are continually revolving; that whatever novelty may strike the ear, in passages of history taken from periods widely remote, affects the names only, and circumstances that are extra-essential; that the passions meantime, the motives, and (allowing for difference of manners) the means even, are subject to no variety; that in ancient or in modern history there is no real accession made to our knowledge of human nature: but that all proceeds by cycles of endless repetition; and in fact that, according to the old complaint, 'there is nothing new under the sun.' It is not true that 'there is nothing new under the sun,' This is the complaint, as all men know, of a jaded voluptuary, seeking for a new pleasure and finding none, for reasons which lay in his own vitiated nature. Why did he seek for novelty? Because old pleasures had ceased to stimulate his exhausted organs; and that was reason enough why no new pleasure, had any been found, would operate as such for _him_. The weariness of spirit, and the poverty of pleasure which he bemoaned as belonging to our human condition, were not in reality _objective_, (as a German philosopher would express himself,) or laid in the nature of things, and thus pressing upon all alike, but _subjective_, that is to say, derived from the peculiar state and affections of his own organs for apprehending pleasure. Not the _apprehensibile_, but the _apprehendens_, was in fault--not the pleasures, or the dewy freshness of pleasures, had decayed, but the sensibilities of him who thus undertook to appraise them. More truly, and more philosophically, it may be said that there is nothing old under the sun, no absolute repetition. It is the well-known doctrine of Leibnitz, [Footnote 2] that amongst the familiar objects of our daily experience, there is no perfect identity. All in external nature proceeds by endless variety. Infinite change, illimitable novelty, inexhaustible difference, these are the foundations upon which nature builds and ratifies her purpose of _individuality_--so indispensable, amongst a thousand other great uses, to the very elements of social distinctions and social rights, But for the endless circumstances of difference which characterize external objects, the rights of property, for instance, would have stood upon no certain basis, nor admitted of any general or comprehensive guarantee.