.-.V.4. on the orator. on fate, Stoic Paradoxes, divisions of oratory.-.V.61. On the Republic, on the Laws.-V.71. On Ends.-.V.81. Tusculan Disputations.-.V.91. Nature of the Gods, academic.-.V.02. On Old age, on Friendship, on Divination.-.V.12. On Duties.