【格言】... a mind needs books as a sword needs a whetstone, if it is to keep its edge.  posted on 2017/01/01 (  878 )

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... a mind needs books as a sword needs a whetstone, if it is to keep its edge.

... a mind needs books as a sword needs a whetstone, if it is to keep its edge.

-- George R.R. Martin, A Game of Thrones