oicism (Greek Στοά) was a school of Hellenistic philosophy founded in Athens by Zeno of Citium in the early 3rd century BC. The Stoics considered destructive emotions to be the result of errors in judgment, and that a sage, or person of "moral and intellectual perfection," would not suffer such emotions.[1] Stoics were concerned with the active relationship between cosmic determinism and human freedom, and the belief that it is virtuous to maintain a will (called prohairesis) that is in accord with nature. Because of this, the Stoics presented their philosophy as a way of life, and they thought that the best indication of an individual's philosophy was not what a person said but how he behaved.[2] Later Stoics, such as Seneca and Epictetus, emphasized that because "virtue is sufficient for happiness," a sage was immune to misfortune. This belief is similar to the meaning of the phrase 'stoic calm', though the phrase does not include the "radical ethical" Stoic views that only a sage can be considered truly free, and that all moral corruptions are equally vicious.[1]
Stoic doctrine was a popular and durable philosophy, with a following throughout Greece and the Roman Empire, from its founding until the closing of all philosophy schools in 529 AD by order of the Emperor Justinian I, who perceived their pagan character to be at odds with the Christian faith.[3][4]
name.[11][12] Unlike the other schools of philosophy, such as the Epicureans, Zeno chose to teach his philosophy in a public space, which was a colonnade overlooking the central gathering place of Athens, the Agora.
Zeno's ideas developed from those of the Cynics, whose founding father, Antisthenes, had been a disciple of Socrates. Zeno's most influential follower was Chrysippus, who was responsible for the moulding of what is now call Stoicism. Later Roman Stoics focused on promoting a life in harmony within the universe, over which one has no direct control.