Socrates is an enigmatic figure, known chiefly through the accounts of others like Plato and Aristophanes. He was one of the most brilliant intellects ever, and devised what would later be called the Socratic method, which is a way of leading one's interlocutor to see his errors and contradictions through clever questioning before leading him to the truth. In ancient Athens, Socrates was widely known as a "gadfly", that is, an annoying insect buzzing at people's ears, because he kept questioning prejudices and contradictions; he was eventually tried and executed for "corrupting the minds of the youth".

Gautama Buddha is also known as Siddharta Gautama, or simply the Buddha, which means "Awakened" or "Enlightened". Born a prince, he chose a path of ascetism only to realize that it was as profound an illusion as self-indulgence. He achieved Enlightenment after 49 days of meditation; his awakening led him to discover the cause of suffering and the ways to eliminate it. These discoveries founded Buddhism, and his "Four Noble Truths" still form the heart of its teachings.

Ancient philosophy provides us with timeless wisdom while bringing a new light on the way modern thought has been shaped by building on the ancient masters. This audiobook is a careful compilation of essential quotes summarizing each one of the great masters' fundamental ideas. Learn Stoicism from the teachings of both Marcus Aurelius, the emperor, and Epictetus the slave, each one intent on his own quest for the best possible life; discover the essence of ideas, logic and philosophy with Aristotle and his pupil Plato.

Marcus Aurelius was a Roman Emperor, the last of the Five Good Emperors, and one of the most important Stoic philosophers, along with the slave Epictetus. Marcus Aurelius wrote the Meditations while in a military campaign; it was a series of notes written for no one but himself in his quest for self-improvement. Stoicism is the attitude allowing one to free oneself from the unnecessary suffering that arises from anxiety about events that are beyond our control; therefore, it can be of tremendous importance in one's life.

Voltaire was a French writer famous for his wit and irony. They were his tools for launching vitriolic attacks on the established Catholic church, the adversaries of freedom of religion and expression, and on separation of church and state. His prolific writing took almost every possible literary form: plays, novels, essays, but also poems, historical and scientific works.

Albert Einstein is widely considered as one of the greatest minds that ever lived. He developed the theory of relativity, one of the two pillars of modern physics alongside quantum mechanics, and penned the world's most famous equation, E=mc².

One of the undisputed giants in the history of human thought, and the founder of one of the world's longest-lasting cultural traditions, Confucius (known as Kong Fuzi in his native China) is arguably the most enduring of all the world's great thinkers. The Analects, the slender volume thought to have been compiled by his followers, has the strongest claim to represent Confucius' actual words. The book contains memorable sayings about the moral health of the individual, the family and the body politic.

Oscar Wilde is remembered as one of the wittiest minds ever, thanks to his provocative style and humor. In the 1890s, he was one of London's most popular playwrights; his masterpieces are The Importance of Being Earnest and the dark and fantastical Picture of Dorian Gray. His writings entwine themes of beauty, decadence and duplicity, which made him a more than colorful agent provocateur in the Victorian society. This would eventually lead to a very public trial after he was accused of sodomy. His defense, punctuated with witticism, often left the court roaring with laughter, but the evidence was against him, and he was eventually sent to prison.

Mark Twain is one of the wittiest and most prolific writers of all time. He is mostly known for "The Adventures of Tom Sawyer" and its sequel, "The Adventures of Huckleberry Finn", which is often called the Great American Novel.

Sir Francis Bacon had a tremendous impact on science and philosophy during the scientific revolution in XVIIth-century England. He was the first to argue for a skeptical and methodical approach in science, based on careful observation of events in nature, and founded on induction. His work, firmly grounded in empiricism to prevent projection of one's preferred hypothesis, made him the father of scientific method. This was a groundbreaking turn of events at the time, and is still the basis of the scientific framework today.

Alfred North Whitehead once noted: "the safest general characterization of the European philosophical tradition is that it consists of a series of footnotes to Plato." Plato is indeed considered the most pivotal figure in the development of philosophy, along with his teacher, Socrates, and his student, Aristotle. But his writings are often light, fresh and funny; it was Plato who invented the dialogue in philosophy, which makes a point very easy to follow and the occasion of various scenic arrangements.

Montaigne might well be one of the most sympathetic writers ever known. He is known for popularizing the essay as a literary genre; his style merges casual anecdotes and autobiography with deep intellectual insights. His "Essays" are among the most influential ever written; one can recognize Montaigne's direct influence on great literary figures all over the world, from René Descartes to Nietzsche, Isaac Asimov, and possibly William Shakespeare.

Lao Tsu, also known as Lao Tzu or Laozi, is an ancient Chinese philosopher and sage, and an absolutely central figure in Asiatic culture. He is known as the author of the "Tao Te Ching" or "Daodejing" and the founder of Taoism. In traditional China, Taoism is a way of living in harmony with the Tao, "way", "path", or "principle", something that is both the source of, and the force behind, everything that exists. Throughout history, Laozi's work has been embraced by various anti-authoritarian movements, because his style is designed to elicit critical thinking through ambiguousness.

The great figures of modern philosophy led generations to struggle with the most crucial of questions and break through a new understanding of conscience and existence. Nietzsche's work is radical, sometimes violent, often ironic; it fascinates anyone bold enough to delve into it, exerted a profound influence on modern intellectual history, and covers a wide range of subjects. Immanuel Kant is one of the most important figures of German philosophy, said to have affected a Copernican revolution in philosophy.

Epictetus was born a slave, and became one of the most influent Stoic philosophers. Stoicism is the attitude allowing one to free oneself from the unnecessary suffering that arises from anxiety about events that are beyond our control; therefore, it can be of tremendous importance in one's life. According to Epictetus, our own actions and attitudes are the only thing in our control; whatever else happens, we should examine calmly and dispassionately, because no amount of suffering will change the impact of external events.