A philosophical treatise of Cicero setting forth six striking theorems of the Stoic system.
It was composed in B.C. 46. Edited by Orelli (with the Tusculans) (Zürich,
1829); and by Möser (Göttingen, 1846).
Harry Thurston Peck. Harpers Dictionary of Classical Antiquities. New York. Harper and Brothers. 1898.
The National Endowment for the Humanities provided support for entering this text.