Book 4: 《里仁》 Li Ren (Brotherliness)
《里仁》 Passage 4.2
子曰：「不仁者不可以久處約，不可以長處樂。仁者安仁，知者利仁。」
Legge Translation (1861)
The Master said: "Those who are without virtue cannot abide long either in a condition of poverty and hardship, or in a condition of enjoyment. The virtuous rest in virtue; the wise desire virtue."