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Even if there are delicious dishes, if you don't eat them, you don't know their taste; even if there are the ultimate truth, if you don't learn it, you don't know its goodness. Therefore, only after learning can you know your shortcomings, and only after teaching can you know your difficulties. Knowing your shortcomings, you can reflect on yourself; knowing your difficulties, you can strengthen yourself. Therefore, it is said that teaching and learning complement each other. "The Book of Changes" says: "Learning is half done." Is this what it means!
The inscription said: "Xie Annan is not as clear-minded as his brother, and not as learned as Kong Yan, but he is actually better than Kong Yan."
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