和光同塵

Chinese

		mix together; peace; harmony mix together; peace; harmony; and; with; union; cap (a poem); respond in singing; soft; warm	light; ray; bright	like; same; similar like; same; similar; together; alike; with	dust; dirt; earth
trad. (和光同塵)		和	光	同	塵
simp. (和光同尘)		和	光	同	尘

From Tao Te Ching, Chapter 4:

From: Tao Te Ching, 4^th century BCE

Cuò qí ruì, jiě qí fēn, hé qí guāng, tóng qí chén. [Pinyin]

[We should] blunt our sharpness,
unravel our entanglements,
glow with veiled radiance,
and mingle ourselves with dust.

The sentence quoted above reappears in Chapter 56.

Old Chinese
(Baxter–Sagart): /*[ɢ]ˤoj kʷˤaŋ lˤoŋ [d]rə[n]/

(Zhengzhang): /*ɡoːl kʷaːŋ doːŋ rdɯn/

Baxter–Sagart system 1.1 (2014)
Character	和	光	同	塵
Reading #	1/2	1/1	1/1	1/1
Modern Beijing (Pinyin)	hé	guāng	tóng	chén
Middle Chinese	‹ hwa ›	‹ kwang ›	‹ duwng ›	‹ drin ›
Old Chinese	/*[ɢ]ˁoj/	/*kʷˁaŋ/	/*lˁoŋ/	/*[d]rə[n]/
English	harmonious	light, brightness	together, join	dust (n.)
Notes for Old Chinese notations in the Baxter–Sagart system: * Parentheses "()" indicate uncertain presence; * Square brackets "[]" indicate uncertain identity, e.g. [t] as coda may in fact be -t or -p; Angle brackets "<>" indicate infix; * Hyphen "-" indicates morpheme boundary; * Period "." indicates syllable boundary.

Zhengzhang system (2003)
Character	和	光	同	塵
Reading #	1/2	1/2	1/1	1/1
No.	4932	4506	12446	1397
Phonetic component	禾	光	同	塵
Rime group	歌	陽	東	文
Rime subdivision	3	0	0	1
Corresponding MC rime	和		同	陳
Old Chinese	/*ɡoːl/	/*kʷaːŋ/	/*doːŋ/	/*rdɯn/
Notes		灮隸變	甲金文象有節筒管與口協合，如此方能音律諧和，爲筒（簫）初文

和光同塵