Stoicism

Stoicism is a philosophical movement and practical guide to living, emphasizing daily self-discipline and moral improvement, which originated in the Hellenistic period of ancient Greece and continued well into the Roman Imperial period. The ancient Stoics believed that the universe operated according to reason, or logos, providing a unified account of the world, constructed from ideals of rational discourse, monistic physics, and naturalistic ethics. These ideals constitute virtue, which is necessary for the Stoic goal of 'living a well-reasoned life'. Stoic philosophy is traditionally divided into three interconnected disciplines: logic, physics, and ethics. Stoic logic focuses on highly intentional reasoning through propositions, arguments, and the differentiation between truth and falsehood. Philosophical discourse is paramount in Stoicism, including the view that the mind is in rational dialogue with itself. Stoic ethics centers on virtue as the highest good, cultivating emotional self-control, a calm problem-solving state of mind, and rational judgment to attain lifelong flourishing (eudaimonia). At the same time, passions, anxieties, and insecurities are viewed as misguided reactions that ought to be controlled through self-disciplined practice. Of all the schools of ancient Western philosophy, Stoicism made the greatest claim to being utterly systematic. Central to Stoic ethics was the idea of living in accordance with nature, which meant aligning one's life with one's sense of reason and the rational order of the universe. Stoicism was founded in the ancient Agora of Athens by Zeno of Citium around 300 BCE, and flourished throughout the Greco-Roman world until the 3rd century CE. Stoicism emerged from the Cynic tradition and was popularized through public teaching at the Stoa Poikile, a painted colonnade. Among its adherents was Roman Emperor Marcus Aurelius. Along with Aristotelian term logic, the system of propositional logic developed by the Stoics was one of the two great systems of logic in...