Book 3: 《八佾》 Ba Yi (Eight Rows)
《八佾》 Passage 3.16
子曰：「射不主皮，為力不同科，古之道也。」
Legge Translation (1861)
The Master said: "In archery it is not going through the leather which is the principal thing; — because people's strength is not equal. This was the old way."