Surak

Surak was a Vulcan philosopher and pacifist who lived on Vulcan around the 4th century. Surak helped end the destructive wars on Vulcan and taught his followers to learn to embrace logic and control their emotions. This era became known as the Time of Awakening and saw Vulcans transform from violent savages and transcend into logical, ordered beings. Surak became the reverred father of Vulcan logic and his teachings were still worshipped in the 24th century. (TOS episode: "The Savage Curtain" and TNG episode: "Gambit, Part II").