Book 15: 《衛靈公》 Wei Ling Gong (Duke Ling of Wey)
《衛靈公》 Passage 15.38
子曰:「事君,敬其事而後其食。」
Legge Translation (1861)
The Master said: "A minister, in serving his prince, reverently discharges his duties, and makes his emolument a secondary consideration."