 For the purposes of this entry, a more selective approach is adopted. Three late dialogues will be highlighted below, but the late period also saw the composition of two works likely to be relatively familiar to non-specialists: On Duties (De Officiis), concerning practical conduct, and Tusculan Disputations, on the theory of the emotions, together with a trio of works on mainly Stoic themes: On Fate (De Fato), On Divination (De Divinatione) and Stoic Paradoxes (Paradoxa Stoicorum), as well as a pair on specific issues in ethics: On Old Age (De Senectute) and On Friendship (De Amicitia). In what follows, further works from the period on each of three central topics – epistemology, ethical theory and theology – are discussed, in order to offer a representative illustration of the distinctiveness of Cicero’s approach as an Academic sceptic and writer of philosophical dialogues.