For the same reason, industry would have nothing to suffer from an economic system which increased the revenue, encouraged agriculture by relieving the husbandman, and insensibly tended to bring all fortunes nearer to that middle condition which constitutes the genuine strength of the State. These taxes might, I admit, bring certain fashionable articles of dress and amusement to an untimely end; but it would be only to substitute others, by which the artificer would gain, and the exchequer suffer no loss. In a word, suppose the spirit of government was constantly to tax only the superfluities of the rich, one of two things must happen: either the rich would convert their superfluous expenses into useful ones, which would redound to the profit of the State, and thus the imposition of taxes would have the effect of the best sumptuary laws, the expenses of the State would necessarily diminish with those of individuals, and the treasury would not receive so much less as it would gain by having less to pay; or, if the rich did not become less extravagant, the exchequer would have such resources in the product of taxes on their expenditure as would provide for the needs of the State. In the first case the treasury would be the richer by what it would save, from having the less to do with its money; and in the second, it would be enriched by the useless expenses of individuals. We may add to all this a very important distinction in matters of political right, to which governments, constantly tenacious of doing everything for themselves, ought to pay great attention. It has been observed that personal taxes and duties on the necessaries of life, as they directly trespass on the right of property, and consequently on the true foundation of political society, are always liable to have dangerous results, if they are not established with the express consent of the people or its representatives. It is not the same with articles the use of which we can deny ourselves; for as the individual is under no absolute necessity to pay, his contribution may count as voluntary. The particular consent of each contributor then takes the place of the general consent of the whole people: for why should a people oppose the imposition of a tax which falls only on those who desire to pay it? It appears to me certain that everything, which is not proscribed by law, or contrary to morality, and yet may be prohibited by the government, may also be permitted on payment of a certain duty. Thus, for example, if the government may prohibit the use of coaches, it may certainly impose a tax on them; and this is a prudent and useful method of censuring their use without absolutely forbidding it. In this case, the tax may be regarded as a sort of fine, the product of which compensates for the abuse it punishes.