CAMPBELL, George. The Philosophy of Rhetoric. London: V. Strahan and T. Cadell, 1776. 2 vols.
Campbell. 1776
Authority
[v. 1, p. 84] Utiliza el concepto en su sentido clásico: “Some, on a superficial view, may imagine that the doctrine above expounded is opposed by no less authority than that of Aristotle.”