管仲 and
晏婴 were chancellors of the state of Qi more than a century apart: Guan Zhong made Duke Huan the first hegemon among the lords, and Yan Ying served three dukes and was famous for living simply. Guan Zhong says of his old friend
生我者父母,
知我者鲍子也 'my parents gave me life, but it is Master Bao who knows me', the friendship behind
管鲍之交.