Yulgok, also known as Yi I, was a prominent Korean Confucian scholar and philosopher during the Joseon Dynasty. Born in 1536, he is celebrated for his contributions to Confucian thought and education in Korea. Yulgok emphasized the importance of moral integrity and the role of education in cultivating virtuous leaders. In addition to his philosophical work, Yulgok served in various government positions, advocating for reforms that promoted social welfare and ethical governance. His writings, including the influential Yulgok's Writings, continue to be studied for their insights into Confucianism and Korean history, making him a key figure in the development of Korean intellectual thought.