Book 7: 《述而》 Shu Er (Transmission)
《述而》 Passage 7.18
子所雅言,詩、書、執禮,皆雅言也。
Legge Translation (1861)
The Master's frequent themes of discourse were — the Odes, the History, and the maintenance of the Rules of Propriety. On all these he frequently discoursed.