Of the various researches, which engage this enlightened age, there is not one perhaps more important, whether we consider the public weal, or the general interest of humanity, than that which concerns _luxury_. It is regarded by some as the source of the greatest calamities; by others as a source of opulence and industry. It has been said and repeated thousands of times, that we often dispute, because we do not understand each other, and that we give a different meaning to words we use, because we do not define them with sufficient precision. This is frequently true; but cases will often arise where, though the words of a proposition are taken in precisely the same acceptation, and those who employ them reason alike, yet the result of their reasonings are diametrically opposite. Luxury has at all times been considered as a cause of the corruption of morals, and the destruction of empires; but in the last ages, it has not wanted its advocates--nay, they have even pretended, that it was necessary to render empires flourishing, to favor commerce, industry, circulation, manufactures; and that _it_ alone would redress the inequality of various conditions, by making the superfluities of some contribute to relieve the necessities and wants of others. The contrary has always been held as an irrefragible axiom. But still its advocates maintain, that it nourishes all the refinements of good taste, and developes the talents of the artist, whose art and genius are encouraged by the profusion and prodigality which it produces. This is indeed the favorable side of the picture; but how often is it, that what we see in an object, is not all we might see there, and that one truth by intercepting the view of others, conducts us often to error. It is possible by considering the subject more attentively, though we may find all we have said, true to a certain degree, yet on the other hand, the evil, which excessive luxury produces, is infinitely more dangerous;--and speculation will confirm what the experience of all ages has demonstrated. It is an historical and invariable truth, that excessive luxury has always been the harbinger of the destruction of a state. I may add, it has always been the fatal cause. Labor and economy are the principles of true prosperity--the eclat of pomp and magnificence without them, is only a false splendor, which conceals inward misery. But it is here, we must stop for a moment, before we further advance, in order to have a precise idea, of what we understand by the word _luxury_. If by it, we mean every thing which exceeds the physical necessities of life, I should apologize to the learned. But I do not mean to fix the boundary by the laws of Lycurgus. I agree farther, that what may be luxury at one time, is not so at another; but it is in this gradation, which may be extended to infinity, that we ought wisely to seize that degree of the scale, where it degenerates into vice--I mean political vice, which