Plutarch's essays and miscellanies, Vol. 5 (of 5) : $b Comprising all his works collected under the title of "Morals"

The Moralia (Latin for "Morals", "Customs" or "Mores"; Ancient Greek: Ἠθικά, Ethiká) is a set of essays ascribed to the 1st-century scholar Plutarch of Chaeronea. The eclectic collection contains 78 essays and transcribed speeches. They provide insights into Roman and Greek life, but they also include timeless observations. Many generations of Europeans have read or imitated them, including Michel de Montaigne, Renaissance Humanists and Enlightenment philosophers. (This summary is from Wikipedia.)