「為人師表」

(pos:動詞)
<explanation>
yue:身為老師，而以身作則；做其他人嘅榜樣
eng:to be a teacher (and set an example); to act as a role model for others
<eg>
yue:佢學識淵博，又樂於教導後輩，確實係為人師表嘅典範。 (keoi5 hok6 sik1 jyun1 bok3, jau6 lok6 jyu1 gaau3 dou6 hau6 bui3, kok3 sat6 hai6 wai4 jan4 si1 biu2 ge3 din2 faan6.)
eng:He is highly knowledgeable and enjoys mentoring the younger generation, truly setting an example for fellow educators.