Yu Hyeong-won

Yu Hyeong-won (Korean: 유형원; 1622–1673), also spelled as Yoo Hyung-Won, was a Korean philosopher. His art name was Ban'gye (磻溪). He was a Neo-Confucianist and science scholar of the Korean Joseon Dynasty. He was a Korean pioneer of the early silhak ("practical learning") school as well as a social critic and scholar of the late Joseon period. He was the disciple of Misu Heo Mok and second cousin of the silhak scholar Seongho Yi Ik.

Yu was a member of the Munhwa Yu clan, and many of his extended family members held high official positions in the Joseon government. However, he did not become an official, but led the life of a reclusive scholar. His work, Bangyesurok, became influential during the reign of King Yeongjo, who was made aware of it in 1741 and authorised its printing in 1770.