Zeno of Citium (334 BC - 262 BC)

Zeno is the architect of Stoicism, which urges people to lead a life of virtue in accordance with nature in order to achieve peace of mind and goodness: “Happiness is a good flow of life.” The Universe is a godly entity whose Universal Reason inspires Man to rationalize and exert his free will by building knowledge and avoiding the dominance of the irrational.