Zeno of Citium

Zeno of Citium (Greek: Ζήνων ὁ Κιτιεύς, Zēnōn ho Kitiéŭs;, c. 334 BC – c. 262 BC) was a Greek thinker of Phoenican descent from Citium (Greek: Κίτιον, Kition). Zeno was the founder of the Stoic school of philosophy, which he taught in Athens from about 300 BC. Based on the moral ideas of the Cynics, Stoicism laid great emphasis on goodness and peace of mind gained from living a life of virtue in accordance with nature. It proved very successful, and flourished as the dominant philosophy from the Hellenistic period through to the Roman era.