Tsinghua University's motto
自强不息,
厚德载物 sits alongside
校训 'spirit' words including
笃实 in many Chinese university mottoes —
笃 has carried Confucian connotations of unshaken sincerity since the 《
论语》, where
笃信好学 ('earnestly believe and love learning') is one of Confucius' central virtues.