Book 7: 《述而》 Shu Er (Transmission)
《述而》 Passage 7.17
子曰：「加我數年，五十以學易，可以無大過矣。」
Legge Translation (1861)
The Master said: "If some years were added to my life, I would give fifty to the study of the Yi, and then I might come to be without great faults."