《尚书·商书·盘庚上》
你们能克制私心，把实际的好处施给百姓，以至于亲戚朋友，于是才敢扬言你们有积德。
汝克黜乃心，施实德于民，至于婚友，丕乃敢大言汝有积德。
You can overcome your selfishness and give practical benefits to the people, and even to your relatives and friends, so you dare to boast that you have accumulated virtue.