id author title date pages extension mime words sentences flesch summary cache txt en-wikipedia-org-1586 De Otio - Wikipedia .html text/html 1255 220 68 The manuscript text begins mid-sentence, and ends rather abruptly.[4][5] In the Codex Ambrosianus C 90 (the main source for Seneca's essays) it is simply tacked onto the end of De Vita Beata suggesting a scribe missed a page or two.[6] The title of the essay, De Otio, is known from the table of contents. The addressee has been erased but appears to have been seven letters long and is assumed to have been Seneca's friend Serenus.[6] De Otio is thus one of a trio of dialogues addressed to Serenus, which also includes De Constantia Sapientis and De Tranquillitate Animi.[7] Chronologically, it is thought to be the last of the three.[7] D. Williams Lucius Annaeus Seneca De Otio Cambridge Greek and Latin Classics (p.2) (Cambridge University Press, 30 Jan 2003) ISBN 0521588065 [Retrieved 2015-3-16] Williams (2003), Seneca De Otio, De Brevitate Vitae (Cambridge Greek and Latin Classics). ./cache/en-wikipedia-org-1586.html ./txt/en-wikipedia-org-1586.txt