Lü Meng was a general of Eastern Wu — brave, loyal, and completely uneducated. His colleagues dismissed him as a muscle-bound soldier who could not tell a book from a bamboo stick.
One day, Sun Quan, the king, told Lü Meng and another general: "You are both in positions of authority. You should study." Lü Meng protested: "I have no time — the army keeps me too busy." Sun Quan replied: "Busier than me? I am not asking you to become a scholar. Just read enough to learn from history."
Lü Meng began to study. He was relentless — reading late into the night, asking questions, absorbing everything he could.
Some time later, Lu Su — the most learned man in the kingdom — visited Lü Meng to discuss strategy. To his astonishment, Lü Meng outargued him at every turn. Lu Su placed his hand on Lü Meng's back and said: "I thought you were just a warrior. Now I see you are learned and brilliant — you are no longer the old Lü Meng of Wu."
Lü Meng smiled: "When a man has been away for three days, you should wipe your eyes and look at him again."
初，权谓蒙及蒋钦曰：「卿今并当涂掌事，宜学问以自开益。」蒙曰：「在军中常苦多务，恐不容复读书。」权曰：「孤岂欲卿治经为博士邪？但当令涉猎见往事耳。卿言多务，孰若孤？」
蒙始就学，笃志不倦。后鲁肃过蒙言议，常欲受屈。肃拊蒙背曰：「吾谓大弟但有武略耳，至于今者，学识英博，非复吴下阿蒙。」蒙曰：「士别三日，即更刮目相待。」
初，权谓蒙及蒋钦曰：「卿今并当涂掌事，宜学问以自开益。」蒙曰：「在军中常苦多务，恐不容复读书。」权曰：「孤岂欲卿治经为博士邪？但当令涉猎见往事耳。卿言多务，孰若孤？」
蒙始就学，笃志不倦。后鲁肃过蒙言议，常欲受屈。肃拊蒙背曰：「吾谓大弟但有武略耳，至于今者，学识英博，非复吴下阿蒙。」蒙曰：「士别三日，即更刮目相待。」
Reflection & Analysis · 寓意解读
Core Wisdom
People change. The one you dismissed yesterday may be your superior today. The wise do not judge by old impressions — they look again, with fresh eyes.
The phrase "刮目相看" (wipe your eyes and look again) became an idiom for reassessing someone who has changed. Lü Meng's transformation was not just intellectual — it was social. He went from being dismissed as a brute to being respected as a strategist.
Sun Quan's advice is equally notable. He did not demand scholarship — he demanded exposure. "Just read enough to learn from history." This is the most practical educational philosophy: you do not need to master every field, but you need to understand enough to make better decisions.