三人行，必有我师 (三人行，必有我師) sān rén xíng, bì yǒu wǒ shī

sān rén xíng, bì yǒu wǒ shī phrase if three walk together, one can be my teacher
Domain: Proverb 谚语
Notes: Saying from the Analects of Confucius (CC-CEDICT '三人行，必有我師')