Vitanda est improba Syren, Desidia.1
1. Horace, Opera, London, 1744, p. 149 (inscribed “J.Q. Adams, Paris, March 15, 1785,” in MQA), Bk. II, Satire III, lines 14–15: “You must shun the wicked Siren Sloth  or be content to drop whatever honour you have gained in nobler hours” (Horace, Satires, Epistles and Ars Poetica, transl. Fairclough description begins Horace: Satires, Epistles and Ars Poetica with an English Translation, by H. Rushton Fairclough, Cambridge, 1947. description ends , p. 153). These two lines appear on the second leaf, between the titlepage and first page of Diary entries.