Book 9: 《子罕》 Zi Han (The Master Shunned)
《子罕》 Passage 9.25
子曰:「主忠信,毋友不如己者,過則勿憚改。」
Legge Translation (1861)
The Master said: "Hold faithfulness and sincerity as first principles; have no friends not equal to yourself; and when you have faults, do not fear to abandon them."