Epictetus was a Greek Stoic philosopher who lived in the 1st and 2nd century AD. Born as a slave, he gained his freedom and dedicated his life to the study and teachings of Stoicism. Epictetus believed that human beings have the ability to control their own perceptions and the way they respond to external events. His philosophy emphasized the importance of accepting life as it comes, detaching oneself from desires and focusing on cultivating inner virtue. Epictetus's teachings had a profound impact on many, including the Roman Emperor Marcus Aurelius. His works, including the "Enchiridion" and the "Discourses," continue to inspire and guide individuals seeking inner peace and happiness.