- (46 BC) Paradoxa Stoicorum (Stoic Paradoxes)
- (45 BC) Hortensius
- (45 BC) Lucullus or Academica Priora – Liber Secundus (Second Book of the Prior Academics)
- (45 BC) Varro or Academica Posteriora (Posterior Academics)
- (45 BC) Consolatio (Consolation) How to console oneself at the death of a loved person (see Consolatio)
- (45 BC) De Finibus Bonorum et Malorum (About the Ends of Goods and Evils) – a book on ethics[8]
- (45 BC) Tusculanae Quaestiones (Questions debated at Tusculum)
- (45 BC) De Natura Deorum (On the Nature of the Gods)
- (45 BC) De Divinatione (On Divination)
- (45 BC) De Fato (On Fate)
- (44 BC) Cato Maior de Senectute (Cato the Elder on Old Age)
- (44 BC) Laelius de Amicitia (Laelius on Friendship)
- (44 BC) De Officiis (On Duties)
On Politics and Statecraft
- (84 BC) De Inventione (About the composition of arguments)
- (55 BC) De Oratore ad Quintum fratrem libri tres (On the Orator, three books for his brother Quintus)
- (54 BC) De Partitionibus Oratoriae (About the subdivisions of oratory)
- (52 BC) De Optimo Genere Oratorum (About the Best Kind of Orators)
- (51 BC) De Re Publica (On the Republic, also known as “On the Commonwealth”, and referred to as such, above)
- (46 BC) Brutus (For Brutus, a short history of Roman rhetoric and orators dedicated to Marcus Junius Brutus)
- (?? BC) De Legibus (On the Laws)