After having gone through _Aristotle's Politics_, the excellent extract by Polybius of Republics is to be read; with the _Harangues of Mecaenas and Agrippa to Augustus_, in Dion; and _Sallust's Letter to Caesar_.

_Plutarch's Lives of Pericles_, _Cato_, _the Gracchi_, _Demosthenes_, _and Cicero_, must not be omitted: much may be learned too from _Cicero's Letters to Atticus_, if they were translated by one well acquainted with the Roman History of that period.
After this would be the proper time for reading _Aristotle's Rhetoric_: for, as is well remark'd by that great man, who possessed all the arts and sciences in an eminent degree, from Morals and Politics must the arguments be drawn that are to convince mens understandings; that is to say, it is impossible to be truly eloquent without extensive knowledge.
The better to perceive the use of the precepts it would be proper to read with attention some Orations of Demosthenes and Cicero, particularly those which relate to public Affairs, such as the _Philippics_, the _Olinthiacs_, the Oration _pro lege Manilia_, that against the _Agrarian Law_, and some others.

The next thing, to be applied to is _Jus publicum_, that is to say, the knowledge of the different forms of government, the Conventions between Nations, and, in fine, whatever regards Peace and War.

The treatises of Plato and Cicero _On Laws_ shew in what manner the principles of this law are to be deduced from morality.

It will not be unprofitable to read likewise, or at least to run over the second book of _St.Thomas Aquinas_, especially what he says of Justice and Laws: The _Pandecta_, particularly the first and last book, the first and the three last books of _Justinian's Codex_, point out the use to be made of those principles.