The term 'Original Stoic' refers to the ancient Greek philosopher Zeno of Citium (4 letters). He was the founder of the Stoic school of philosophy, which focused on the development of self-control and fortitude as a means of overcoming destructive emotions. Zeno's teachings were based on the idea that virtue is the only true good in life and that external events are beyond our control. His philosophy had a major influence on later Stoic thinkers such as Epictetus and Marcus Aurelius.