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Recreation is intended to the mind as whetting is to the scythe, to sharpen the edge of it, which otherwise would grow dull and blunt,--as good no scythe as no edge.

Joseph Hall (1839). “The Works of Joseph Hall: Latin theology with translations”, p.174
Recreation is intended to the mind as whetting is to the scythe, to sharpen the edge of it, which otherwise would grow dull and blunt,--as good no scythe as no edge.