35th worldwide, seventh in Asia, and first in Korea. SKKU's School of Medicine is affiliated with Samsung Medical Center, the top research hospital in Korea. Motto SKKU's motto, "Humanity, Righteousness, Propriety, and Wisdom" (仁, 義, 禮, 智), reflects the basic spirit of Confucianism. These four cardinal virtues express humankind's four inherent elements of spirit, action, conscience, and intellect. Humanity abides in the heart that loves, righteousness abides in the heart that knows right from wrong, propriety abides in the heart that knows forbearance, and wisdom abides in the heart that perceives. Confucian philosophy attests to man's innate goodness, and at the same time recognizes that this quality must nevertheless be awakened and nurtured. These four principles, which comprise SKKU's educational philosophy, are the basis for higher education's goals of the search for truth and the establishment of social justice, which are, in turn, based on humanity. University symbol The university's symbol—the ginkgo leaf—is derived from the giant ginkgo trees (Natural Monument No. 59) at Myeongnyundang. Both trees are male, and thus do not bear fruit. They are believed to have been planted in 1519 by Yun Tak, a former chief scholar of Sungkyunkwan. Campuses Humanities and Social Sciences Campus The Humanities and Social Sciences Campus is located behind Sungkyunkwan. The campus includes the 600th Anniversary Building, Student Center, Central Library, Faculty Hall, International Hall, Business School, Hoam Hall, Dasan Hall of Economics, Toegye Hall of Humanities, Suseon Hall, Law School and more. Natural Sciences Campus Samsung Library The library is equipped with state-of-the art digital media room where students can have recreational activity like watching movies. The library also offers several CD player stations for amusements, open cafe and sleeping arena where students can take nap if tired. Learning Factory SKKU Learning Factory is a student facility at Natural Sciences campus in Suwon where creative ideas can be made into a prototype product using 3D printers, laser cutters, CNC router, and Arduino. It has been established by the Fusion Based Creative Informatics Human Resources Development Team, and it serves as a place where students can realize their ideas and build human connections. Student housing and dormitories Sungkyunkwan University offers on-campus dormitories to its students on the campuses which are known as SKKU dorms. Humanities and Social Sciences campus in Seoul offers ten dormitories and housing facilities namely, E-house, G-house, K-house, C-house, I-house, M-house, Crownville A, Crownville C, Victory House, and