Lu Xun was a pen name. The significance of the name is debated, but it is often interpreted as a self-deprecating reference to his own perceived shortcomings and a desire for rapid progress.
Lu Xun is the founder of modern Chinese literature.
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鲁 is his mother's surname, and 迅 'swift' echoes 迅行, a pen name he had used before. His best-known couplet is 横眉冷对千夫指,俯首甘为孺子牛: scowling coldly at a thousand pointing fingers, bowing gladly as an ox for the children.