Michel de Montaigne in the context of "Étienne de La Boétie"

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.

An essay (/ˈɛs.eɪ/, ESS-ay) is, generally, a piece of writing that gives the author's own argument, but the definition is vague, overlapping with those of a letter, a paper, an article, a pamphlet, and a short story. Essays have been sub-classified as formal and informal: formal essays are characterized by "serious purpose, dignity, logical organization, length," whereas the informal essay is characterized by "the personal element (self-revelation, individual tastes and experiences, confidential manner), humor, graceful style, rambling structure, unconventionality or novelty of theme," etc.

Essays are commonly used as literary criticism, political manifestos, learned arguments, observations of daily life, recollections, and reflections of the author. Almost all modern essays are written in prose, but works in verse have been dubbed essays (e.g., Alexander Pope's An Essay on Criticism and An Essay on Man). While brevity usually defines an essay, voluminous works like John Locke's An Essay Concerning Human Understanding and Thomas Malthus's An Essay on the Principle of Population are counterexamples.

Epaminondas (/ɪˌpæmɪˈnɒndəs/; Ancient Greek: Ἐπαμεινώνδας, romanized: Epameinōndas; 419/411–362 BC) was a Greek general and statesman of the 4th century BC who transformed the Ancient Greek city-state of Thebes, leading it out of Spartan subjugation into a pre-eminent position in Greek politics called the Theban Hegemony. In the process, he broke Spartan military power with his victory at Leuctra and liberated the Messenian helots, a group of Peloponnesian Greeks who had been enslaved under Spartan rule for some 230 years following their defeat in the Second Messenian War ending in 600 BC. Epaminondas reshaped the political map of Greece, fragmented old alliances, created new ones, and supervised the construction of entire cities. He was also militarily influential and invented and implemented several important battlefield tactics, such as the oblique order.

Xenophon, the historian and contemporary, is the main source for Epaminondas's military prowess, and Xenophon describes his admiration for him in his major work Hellenica (book VII, chap. 5, 19). Accordingly, in later centuries the Roman orator Cicero called him "the first man of Greece", and in more recent times Michel de Montaigne judged him one of the three "worthiest and most excellent men" who had ever lived. The changes Epaminondas wrought on the Greek political order did not long outlive him, as the cycle of shifting hegemonies and alliances continued unabated. A mere twenty-seven years after his death, a recalcitrant Thebes was obliterated by Alexander the Great. Thus Epaminondas—who had been praised in his time as an idealist and liberator—is today largely remembered for a decade (371 BC to 362 BC) of campaigning that established a decade long Theban hegemony but also sapped the strength of the great city-states and paved the way for Macedonian hegemony.

Early forms of perspectivism have been identified in the philosophies of Protagoras, Michel de Montaigne, and Gottfried Leibniz. However, its first major statement is considered to be Friedrich Nietzsche's development of the concept in the 19th century, influenced by Gustav Teichmüller's use of the term some years prior. For Nietzsche, perspectivism takes the form of a realist antimetaphysics while rejecting both the correspondence theory of truth and the notion that the truth-value of a belief always constitutes its ultimate worth-value. The perspectival conception of objectivity used by Nietzsche sees the deficiencies of each perspective as remediable by an asymptotic study of the differences between them. This stands in contrast to Platonic notions in which objective truth is seen to reside in a wholly non-perspectival domain.

The Essays (French: Essais, pronounced [esɛ]) of Michel de Montaigne are contained in three books and 107 chapters of varying length. They were originally written in Middle French and published in the Kingdom of France. Montaigne's stated design in writing, publishing and revising the Essays over the period from approximately 1570 to 1592 was to record "some traits of my character and of my humours." The Essays were first published in 1580 and cover a wide range of topics.

The Essais exercised an important influence on both French and English literature, in thought and style.