"A mind needs books as a sword needs a whetstone, if it is to keep its edge."
— George R.R. Martin
A Mind Needs Books As A
A mind needs books as a sword needs a whetstone, if it is to keep its edge.
About this quote
Tyrion Lannister says this to Jon Snow in A Game of Thrones (1996) by George R.R. Martin, advising the young man on how to survive a world that will always seek to diminish him. In context, Tyrion — himself dismissed and mocked as a dwarf — explains that a sharp mind, like a sword, must be constantly honed. The line is adapted in Season 1, Episode 2 of Game of Thrones (2011).
Source
A Game of Thrones