fǎnzhèng wǒ zhīdào “one can certainly be my teacher ”shì Kǒng fūzǐ de huà 。wǒ bà jīngcháng yòng zhè jù huà jiàoyù wǒ 。
Anyway, I know that ''Amongst three people walking, one can certainly be my teacher" is a Confucius saying. My dad often teaches me using this sentence.