Such appearances have given rise to a general apprehension, that the progress of societies to what we call the heights of national greatness, is not more natural, than their return to weakness and obscurity is necessary and unavoidable. The images of youth, and of old age, are applied to nations; and communities, like single men, are supposed to have a period of life, and a length of thread, which is spun by the fates in one part uniform and strong, in another weakened and shattered by use; to be cut, when the destined era is come, and to make way for a renewal of the emblem in the case of those who arise in succession. Carthage being so much older than Rome, had felt her decay, says Polybius, so much the sooner; and the survivor too, he foresaw, carried in her bosom the seeds of mortality.
The image indeed is apposite, and the history of mankind renders the application familiar. But it must be obvious, that the case of nations, and that of individuals, are very different. The human frame has a general course: it has in every individual a frail contexture and limited duration; it is worn by exercise, and exhausted by a repetition of its functions: but in a society, whose constituent members are renewed in every generation, where the race seems to enjoy perpetual youth, and accumulating advantages, we cannot, by any parity of reason, expect to find imbecilities connected with mere age and length of days.
The subject is not new, and reflections will crowd upon every reader. The notions, in the mean time, which we entertain, even in speculation, upon a subject so important, cannot be entirely fruitless to mankind; and however little the labours of the speculative may influence the conduct of men, one of the most pardonable errors a writer can commit, is to believe that he is about to do a great deal of good. But, leaving the care of effects to others, we proceed to consider the grounds of inconstancy among mankind, the sources of internal decay, and the ruinous corruptions to which nations are liable, in the supposed condition of accomplished civility.
OF THE TEMPORARY EFFORTS AND RELAXATIONS OF THE NATIONAL SPIRIT.
From what we have already observed on the general characteristics of human nature, it has appeared that man is not made for repose. In him every amiable and respectable quality, is an active power, and every subject of commendation an effort. If his errors and his crimes are the movements of an active being, his virtues and his happiness consist likewise in the employment of his mind; and all the lustre which he casts around him, to captivate or engage the attention of his fellow creatures, like the flame of a meteor, shines only while his motion continues; the moments of rest and obscurity are the same. We know, that the tasks assigned him frequently may exceed, as well as come short of, his powers; that he may be agitated too much, as well as too little; but cannot ascertain a precise medium between the situations in which he would be harassed, and those in which he would fall into languor. We know that he may be employed on a great variety of subjects, which occupy different passions; and that, in consequence of habit, he becomes reconciled to very different scenes. All we can determine in general is, that whatever be the subjects with which he is engaged, the frame of his nature requires him to be occupied, and his happiness requires him to be just.