Book of Songs.
In Confucius' time, how well one understood The Book of Songs was a sign of
his social status and cultural attainment. If one did not study it, one would
find it difficult to improve one's ability to express oneself and to converse with
people of high social status. Confucius' elaboration on the relationship between
studying The Book of Songs and social interaction actually expounds on the
importance of literature in education.