In Defense of the Proposed Manilian Law (17)

And even this must not be neglected by you, which I had proposed to myself as the last thing to be mentioned, when I was to speak of the kind of war, for it concerns the property of many Roman citizens; whom you, as becomes your wisdom, O Romans, must regard with the most careful solicitude. The publicans, [*] most honourable and accomplished men, have taken all their resources and all their wealth into that province; and their property and fortunes ought, by themselves, to be an object of your special care. In truth, if we have always considered the revenues as the sinews of the republic, certainly we shall be right if we call that order of men which collects them, the prop and support of all the other orders.