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释义:培养自己好的品德、性情,即使细微的地方,也一定要谨慎。
We are all in the gutter, but some of us are looking at the stars.
Sustainability isn't a choice—it's a responsibility we owe to the next generation.
A great novel is one that refuses to be forgotten.
The best books are the ones that children want to read again and again.
释义:广泛地学习,恳切地提问,从而增长知识;行为高尚,言语谨慎,从而修养自身。这是对学习与修养的重视。 
知识越少越准确,知识越多,疑惑也就越多。