Alfred Louis Charles de Musset-Pathay (11 December 1810 – 2 May 1857) was a French dramatist, poet, and novelist. Along with his poetry, he is known for writing La Confession d'un enfant du siècle (The Confession of a Child of the Century, autobiographical) from 1836. Musset was born on 11 December 1810 in Paris. His family was upper-class but poor and his father worked in various key government positions, but never gave his son any money. His mother was similarly accomplished, and her role as a society hostess, - for example her drawing-room parties, luncheons, and dinners, held in the Musset residence - left a lasting impression on young Alfred. Early indications of Musset's boyhood talents were seen by his fondness for acting impromptu mini-plays based upon episodes from old romance stories he had read. Years later, elder brother Paul de Musset would preserve these, and many other details, for posterity, in a biography on his famous younger brother. Alfred de Musset entered the collège Henri IV at the age of nine, where in 1827 he won the Latin essay prize in the Concours général. With the help of Paul Foucher, Victor Hugo's brother-in-law, he began to attend, at the age of 17, the Cénacle, the literary salon of Charles Nodier at the Bibliothèque de l'Arsenal. After attempts at careers in medicine (which he gave up owing to a distaste for dissections), law, drawing, English and piano, he became one of the first Romantic writers, with his first collection of poems, Contes d'Espagne et d'Italie (1829, Tales of Spain and Italy). By the time he reached the age of 20, his rising literary fame was already accompanied by a sulphurous reputation fed by his dandy side. He was the librarian of the French Ministry of the Interior under the July Monarchy. During this time he also involved himself in polemics during the Rhine crisis of 1840, caused by the French prime minister Adolphe Thiers, who as Minister of the Interior had been Musset's superior. Thiers had demanded that France should own the left bank of the Rhine (described as France's "natural boundary"), as it had under Napoleon, despite the territory's German population. These demands were rejected by German songs and poems, including Nikolaus Becker's Rheinlied, which contained the verse: "Sie sollen ihn nicht haben, den freien, deutschen Rhein ..." (They shall not have it, the free, German Rhine). Musset answered to this with a poem of his own: "Nous l'avons eu, votre Rhin allemand" (We've had it, your German Rhine). The tale of his celebrated love affair with George Sand, which lasted from 1833 to 1835, is told from his point of view in his autobiographical novel, La Confession d'un Enfant du Siècle (The Confession of a Child of the Century, made into a film, Children of the Century), and from her point of view in her Elle et lui. Musset's Nuits (1835–1837, Nights) trace his emotional upheaval of his love for George Sand, from early despair to final resignation. He is also believed to be the author of Gamiani, or Two Nights of Excess (1833), a lesbian erotic novel, also believed to be modeled on George Sand. Tomb of Alfred de Musset in Père Lachaise Cemetery Musset was dismissed from his post as librarian by the new minister Ledru-Rollin after the revolution of 1848. He was however appointed librarian of the Ministry of Public Instruction in 1853. Musset received the Légion d'honneur on 24 April 1845, at the same time as Balzac, and was elected to the Académie française in 1852 (after two failures to do so in 1848 and 1850). Alfred de Musset died in his sleep on 2 May 1857. The cause was heart failure, the combination of alcoholism and a longstanding aortic insufficiency. One symptom that had been noticed by his brother was a bobbing of the head as a result of the amplification of the pulse; this was later called de Musset's sign. He was buried in Père Lachaise Cemetery in Paris.

Wilhelm Albert Włodzimierz Apolinary Kostrowicki, known as Guillaume Apollinaire, was a French poet, writer, and art critic born in Italy to a Polish mother. Among the foremost poets of the early 20th century, he is credited with coining the word surrealism and writing one of the earliest works described as surrealist, the play Les Mamelles de Tirésias (1917, later used as the basis for an opera in 1947).

A preoccupation with sexual violence characterizes novels, plays, and short stories that Donatien Alphonse François, comte de Sade but known as marquis de Sade, of France wrote. After this writer derives the word sadism, the deriving of sexual gratification from fantasies or acts that involve causing other persons to suffer physical or mental pain. This aristocrat, revolutionary politician, and philosopher exhibited famous libertine lifestyle. His works include dialogues and political tracts; in his lifetime, he published some works under his own name and denied authorship of apparently anonymous other works. His best erotic works combined philosophical discourse with pornography and depicted fantasies with an emphasis on criminality and blasphemy against the Catholic Church. Morality, religion or law restrained not his "extreme freedom." Various prisons and an insane asylum incarcerated the aristocrat for 32 years of his life: ten years in the Bastile, another year elsewhere in Paris, a month in Conciergerie, two years in a fortress, a year in Madelonnettes, three years in Bicêtre, a year in Sainte-Pélagie, and 13 years in the Charenton asylum. During the French revolution, people elected this criminal as delegate to the National Convention. He wrote many of his works in prison.

Work on the Encyclopédie (1751-1772), supreme accomplishment of French philosopher and writer Denis Diderot, epitomized the spirit of thought of Enlightenment; he also wrote novels, plays, critical essays, and brilliant letters to a wide circle of friends and colleagues. Jean le Rond d'Alembert contributed. This artistic prominent persona served as best known co-founder, chief editor, and contributor. He also contributed notably to literature with Jacques le fataliste et son maître (Jacques the Fatalist and his Master), which emulated Laurence Sterne in challenging conventions regarding structure and content, while also examining ideas about free will. Diderot also authored of the known dialogue, Le Neveu de Rameau (Rameau's Nephew), basis of many articles and sermons about consumer desire. His articles included many topics. Diderot speculated on free will, held a completely materialistic view of the universe, and suggested that heredity determines all human behavior. He therefore warned his fellows against an overemphasis on mathematics and against the blind optimism that sees in the growth of physical knowledge an automatic social and human progress. He rejected the idea of progress. His opinion doomed the aim of progressing through technology to fail. He founded on experiment and the study of probabilities. He wrote several articles and supplements concerning gambling, mortality rates, and inoculation against smallpox. He discreetly but firmly refuted technical errors and personal positions of d'Alembert on probability.