a little learning is a dangerous thing
知之甚少则危险
书面/口语·警示知识浅薄
英文释义
having a small amount of knowledge about something can lead to overconfidence and mistakes
例句
He read one article about medicine and now thinks he's a doctor—a little learning is a dangerous thing.
典故来源
出自18世纪英国诗人亚历山大·蒲柏的《论批评》，强调浅薄知识易导致自负和错误。