好为人师 (hào wéi rén shī) | Meaning: to like to lecture others (idiom) | Chinese Idiom with Pinyin & Origin

to believe oneself infallible (idiom) · to be opinionated自以为是zì yǐ wéi shì

ridiculous self-importance (idiom); arrogance妄自尊大wàng zì zūn dà

(idiom) to flaunt one's seniority; to rely on one's age or length of experience to control or belittle others倚老卖老yǐ lǎo mài lǎo

pride · arrogance · conceited · proud of sth骄傲jiāo ào

self-opinionated师心自用shī xīn zì yòng

to like to lecture others (idiom)