Such were the sources of wealth that lay open to men, to whom commerce was officially barred and who were supposed to have no direct interest in financial operations. Far ampler spheres of pecuniary enrichment, more uniformly legal if sometimes as oppressive, were open to the class of men who by this time had been recognised as forming a kind of second order in the State. The citizens who had been proved by the returns at the census to have a certain amount of realisable capital at their disposal--a class of citizens that ranged from the possessors of a moderate patrimony, such as society might employ as a line of demarcation between an upper and a lower middle class, to the controllers of the most gigantic fortunes--had been welded into a body possessing considerable social and political solidarity. This solidarity had been attained chiefly through the community of interest derived from the similar methods of pecuniary investment which they employed, but also through the circumstance (slight in itself but significant in an ancient society which ever tended to fall into grades) that all the members of this class could describe themselves by the courtesy title of "Knights"--a description justified by the right which they possessed of serving on their own horses with the Roman cavalry instead of sharing the foot-service of the legionary. A common designation was not inappropriate to men who were in a certain sense public servants and formed in a very real sense a branch of the administration. The knight might have many avocations; he might be a money-lender, a banker, a large importer; but he was preeminently a farmer of the taxes. His position in the former cases was simply that of an individual, who might or might not be temporarily associated with others; his position in the latter case meant that he was a member of a powerful and permanent corporation, one which served a government from which it might wring great profits or at whose hands it might suffer heavy loss--a government to be helped in its distress, to be fought when its demands were overbearing, to be encouraged when its measures seemed progressive, to be hindered when they seemed reactionary from a commercial point of view. A group of individuals or private firms could never have attained the consistency of organisation, or maintained the uniformity of policy, which was displayed by these societies of revenue-collectors; even a company must have a long life before it can attain strength and confidence sufficient to act in a spirited manner in opposition to the State; and it seems certain that these societies were wholly exempted from the paralysing principle which the Roman law applied to partnership--a principle which dictated that every partnership should be dissolved by the death or retirement of one of the associates.[129] The State, which possessed no civil service of its own worthy of the name, had taken pains to secure permanent organisations of private