Cicero
Marcus Tulius Cicero

Marcus Tullius Cicero was a Roman statesman, lawyer, scholar, philosopher, orator, and writer who tried to uphold optimate principles during the political crises of the Roman Republic that led to the establishment of the Roman Empire. The extensive writings of Cicero include treatises on rhetoric, philosophy, and politics. He is considered one of Rome's greatest orators and prose stylists and the innovator of what became known as "Ciceronian rhetoric". Cicero was educated in Rome and in Greece. He came from a wealthy municipal family of the Roman equestrian order, and served as consul in 63 BC.— Wikipedia
Works

De Inventione
On Invention

Orationes iudiciales
Legal Orations

In Verrem
Against Verres (Verrines)
Commentariolum Petitionis
Handbook on Electioneering

Orationes in Catilinam
Catilinarian Orations

De Oratore
On the Orator

De Partitione Oratoria
On the Division of Speeches

De Re Publica
Republic (On the Commonweatlh)

Somnium Scipionis
Dream of Scipio

De claris oratoribus
Brutus

De Optimo Genere Oratorum
On the Best Kind of Orators

Orator
Orator

Paradoxa Stoicorum
Stoic Paradoxes

Academica
Academics

Cato Maior de Senectute
Cato the Elder, on Old Age

De Finibus Bonorum et Malorum
On the Ends of Good and Evil

De Natura Deorum
On the Nature of the Gods

Tusculanae Disputationes
Tusculan Disputations

De Amicitia
On Friendship

De Divinatione
On Divination

De Fato
On Fate

De Officiis
On Duties
Topica
Topics
De Legibus
On the Laws

Epistulae ad Atticum
Letters to Atticus
Epistulae ad Brutum
Letters to Brutus

Epistulae ad Familiares
Letters to Friends
Epistulae ad Quintum fratrem
Letters to Brother Quintus

Philippicae
Philipics
Epistulae Variae et Fragmenta
Miscellaneous Letter and Fragments
ancient world
graeco-roman