Columbia subject headings:
Philosophers--Korea--Biography.
Scholars--Korea--Biography.
Yi, Hwang, 1501-1570--Friends and associates.
Harvard subject headings:
Neo-Confucianism--Korea.
Philosophers--Korea--Biography
Philosophy, Confucian--Korea.
Philosophy, Korean.
Scholars--Korea--Biography
Yi, Hwang, 1501-1570--Influence.
Princeton subject headings:
Neo-Confucianism--Korea--History.
Philosophy, Confucian--Korea--History.
Philosophy, Korean--Korea--History.
Yi, Hwang, 1501-1570--Influence.