A Song of Ice and Fire, 5-Book Boxed Set: A Game of Thrones, A Clash of Kings, A Storm of Swords, A Feast for Crows, A Dance with Dragons (Song of Ice & Fire 1-5)

by George R.R. Martin

My mind is my weapon. My brother has his sword, King Robert has his warhammer, and I have my mind … and a mind needs books as a sword needs a whetstone, if it is to keep its edge.”