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Mrs. March knew that experience was an excellent teacher, and when it was possible she left her children to learn alone the lessons which she would gladly have made easier, if they had not objected to taking advice as much as they did salts and senna.

真正的智能是讓機器理解人的意圖，而不是讓人去適應機器。

The joy of mathematics comes from the struggle to understand.

靈魂并非與身體分離的事物。