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Denis Diderot

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Portrait of Denis Diderot, an important French thinker, painted in 1767 by Louis-Michel van Loo.

Denis Diderot was a French philosopher, art critic, and writer who lived from 1713 to 1784. He is best known for co-founding, editing, and contributing to the Encyclopédie with Jean le Rond d'Alembert. This important book gathered knowledge from many writers and included details about many crafts and skills.

Diderot studied philosophy but decided to become a writer in 1734. He wrote many famous books, including Les Bijoux indiscrets. The Encyclopédie he helped create sometimes questioned traditional beliefs, which caused trouble with church and government leaders. Even with these challenges, Diderot kept working on it until 1765.

Later in life, Diderot's luck improved when Catherine the Great of Russia bought his personal library and paid him to look after it. He visited her court in Saint Petersburg and wrote essays for her. Many of his most famous works were published after he passed away.

Early life

Denis Diderot was born in Langres, Champagne. He had four siblings, and three of them grew up. Denis went to school at a Jesuit college and later studied at the University of Paris.

N° 9 de la place dans le centre ville de Langres: in the background on the right side is Diderot's birthplace

He thought about becoming a priest but decided to study law at the Paris Law Faculty. He did not stay in law for long. Soon, he began working as a writer and translator. This upset his father, who stopped supporting him. For about ten years, Denis lived a free but uncertain life.

In 1742, Denis became friends with Jean-Jacques Rousseau at a coffee shop. In 1743, he married Antoinette Champion, but his father did not approve of the marriage. They had one daughter together.

Early works

Diderot’s first works were translations of books about Greece, virtue, and medicine. In 1746, he wrote his first original book, Philosophical Thoughts. In this book, he talked about balancing thinking and feelings. That same year, he also wrote The Skeptic’s Walk. In this story, characters with different beliefs discuss ideas about life and the universe.

In 1748, Diderot wrote The Indiscreet Jewels to earn money quickly. It is a story about a magical ring that makes women share private stories. The book also had ideas about philosophy, music, and literature. Diderot was proud of his scientific writing, especially a work on math and nature from that year.

In 1749, Diderot published Letter on the Blind. This book looked at how people understand the world. It talked about how blind people could learn through touch and explored ideas about nature and change over time. The book was published anonymously and was stopped by authorities. Diderot was arrested and put in prison for several months.

Incarceration and release

Denis Diderot was arrested and sent to the Vincennes fortress on 24 July 1749 because many people were unhappy with the government.

While he was there, Diderot could keep one book, Paradise Lost. He read it carefully and made notes.

Thanks to a kind request from Mme du Chatelet, Diderot was later allowed more comfortable rooms and could meet visitors. He promised not to leave without permission. After a few months, on 3 November 1749, he was freed. Soon after, in 1750, he began working on the Encyclopédie.

Encyclopédie

Main article: Encyclopédie

Title page of the Encyclopédie

The Encyclopédie was a big book project started by Denis Diderot and his friend Jean le Rond d'Alembert. A bookseller named André le Breton asked Diderot to help translate a book into French. But Diderot had a bigger idea. He wanted to create a new book that would share all kinds of knowledge from many areas of life.

Work on the Encyclopédie began in 1751. Some people did not like the ideas in the book, so the government stopped the project for a while. But with help from friends, the work continued. Diderot wrote thousands of articles for the book. It took many years, and the final book was finished in 1772.

Mature works

Denis Diderot wrote many works besides the Encyclopédie. His books covered many subjects, from easy essays to deep ideas. One big work is D'Alembert's Dream. It is a talk about big questions like what things are made of and what life means. Another famous book is Jacques le fataliste. It plays with how stories are usually told.

La Religieuse (The Nun or Memoirs of a Nun)

Le Dîner des philosophes painted by Jean Huber. Denis Diderot is the second from the right (seated).

La Religieuse is a story about a girl named Suzanne. Her parents send her to live in a convent. There she faces hard times and unfair treatment. The book shows how strict rules can be very hard on people, especially young women.

Rameau's Nephew

Rameau's Nephew is a talk between two men. One man is the nephew of a famous musician. He talks about his life and feelings. He has lost much of what he had and feels lost. Their talk looks at ideas about life, money, and how people treat each other.

Visual arts

Denis Diderot had a close friend named Friedrich Melchior Grimm. They met through another friend, Jean-Jacques Rousseau. In 1753, Grimm started writing a newsletter called La Correspondance littéraire, philosophique et critique. He sent it to important people across Europe.

In 1759, Grimm asked Diderot to write about art shows held every two years at the Louvre. Diderot wrote about these art shows, called Salons, from the Salon of 1759 to the Salon of 1771, and later for the Salon of 1775 and Salon of 1781. His writings became very famous and were highly praised.

Diderot shared his ideas about what makes art beautiful in a piece he wrote for the report on the 1765 Salon. Even a famous writer named Goethe thought this work was very helpful for both writers and artists.

One of Diderot's favorite artists was Jean-Baptiste Greuze. Diderot liked Greuze's emotional paintings, especially those of Greuze's wife, who had been Diderot's friend at one time.

Theatre

Denis Diderot wrote plays with deep feelings, like Le Fils naturel in 1757 and Le Père de famille in 1758. He also wrote about theatre, sharing his ideas on how plays should be done. In one essay, he talked about a new kind of drama that felt real, not like the old, stiff styles of French theatre.

In 1758, Diderot introduced the idea of the fourth wall. This is the “wall” at the front of the stage that the audience looks through to see the play. He thought this made the story feel more real. He also wrote about actors and how they should perform, saying the best actors don’t actually feel the emotions they show on stage. This idea came from his essay called Paradoxe sur le comédien. The essay also gave us the term l'esprit de l'escalier or l'esprit d'escalier, which means thinking of the perfect answer too late.

Diderot and Catherine the Great

Journey to Russia

When the Russian Empress Catherine the Great learned that Denis Diderot needed money, she offered to buy his library and pay him to look after it. She even paid him a lot of money for many years before he agreed. Though Diderot did not like to travel, he had to visit her.

On October 9, 1773, he arrived in Saint Petersburg and met Catherine the next day. They talked about many things during his five months there, meeting almost every day. They had open and honest conversations.

Back in France

When Diderot returned to France, he asked Catherine for money to cover his travel costs. She gave him more than he asked for, along with a valuable ring and an officer to travel with him back to Paris. Later, when Diderot was not paid for his work on a big book project, Catherine sent him a large sum of money to help him.

In 1784, when Catherine heard Diderot was not well, she invited him to stay in a comfortable home in Paris. He moved there but passed away just two weeks later on July 31, 1784.

Philosophy

Dmitry Levitzky, Denis Diderot, 1773, Musée d'Art et d'Histoire, Geneva

Denis Diderot started with ideas like the famous writer Voltaire, but later changed his mind. He came to believe that everything in the world is made of material things and that there might not be a god. He didn’t like secret or mysterious ideas about religion and thought everything should make sense through thinking and reason.

In one of his books, Diderot wrote about nature, how living things change over time, and how science helps us understand the world. He also helped a friend write a book about clear and honest ideas in philosophy. Diderot believed that his big project, the Encyclopédie, was very important for future generations to learn from. He asked big questions about why we should be good, how we enjoy art, what humans are, and how thinkers can help with government matters.

Death and burial

Denis Diderot passed away in Paris on July 31, 1784, and was buried at the Église Saint-Roch. After his death, his library was sent to Catherine II and placed in the National Library of Russia. Although many famous French people are buried in the Panthéon, Diderot was not offered a place there.

Sadly, in 1793, his grave was moved, and his remains were placed in a common grave by local authorities.

Appreciation and influence

Many people liked talking with Diderot about big ideas. A writer named Morellet said Diderot could talk about philosophy, art, and books in a way that kept everyone interested.

Jean-Simon Berthélemy, Young man admiring Denis Diderot's bust

Even someone who sometimes disagreed with him, Jean Jacques Rousseau, thought that in the future people would respect Diderot just as much as they respected ancient thinkers like Plato and Aristotle.

Famous writers like Goethe and Schiller in Germany also liked Diderot’s work. Goethe called one of Diderot’s books, Rameau's Nephew, a wonderful piece of writing.

Later, many important thinkers and artists, including Balzac, Delacroix, Stendhal, Zola, and Schopenhauer, admired Diderot. A thinker named Comte said Diderot was the most important intellectual of his time. Historian Michelet said Diderot’s ideas would keep influencing people for a long time. Marx even chose Diderot as his favorite writer.

Modern tributes

Many people think Denis Diderot was one of the most interesting thinkers of the 1700s in France.

Monument to Denis Diderot in Paris, 6th arrondissement, by Jean Gautherin

In 1993, a writer named Cathleen Schine wrote a funny book called Rameau's Niece. It made jokes about university life and used a made-up story about Diderot's work.

A French writer named Eric-Emmanuel Schmitt wrote a play called The Libertine. It shows a day in Diderot's life while he was working on a big book called the Encyclopédie.

In 2013, which was the 300th anniversary of Diderot's birth, his hometown of Langres had special events to honor him. They even opened a museum called the Maison des Lumières Denis Diderot to celebrate his work.

Images

Statue of Denis Diderot, a famous French philosopher, located in Langres, France.
Portrait of Paul Heinrich Dietrich Baron d'Holbach, an important Enlightenment thinker and writer.

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