High Quality Content by WIKIPEDIA articles! Yi Eon-jeok (1491–1553), sometimes known by his pen name Hoejae, was a public official and intellectual of the middle Joseon Dynasty of Korea. He was born and died in Gyeongju, then the capital of Gyeongsang province. Like most intellectuals from Gyeongsang in this period, he was a member of the Sarim faction. He contributed to the polarity-nonpolarity (mugeuk-taegeuk) debate in classical Korean Confucianism.