His political ideas are from 'the Stone Age'. [=are from the distant past; are very out of date]
Their lawyer said that he would 'leave no stone unturned' in trying to find more evidence.
The researchers 'left no stone unturned' in their search for the original documents.
(..) born here at Winterfell or a motherless bastard born in the south? This is where I leave you. You're not coming with us? The Wall is not just ice and stone. Ancient spells were carved into its foundations. Strong magic to protect men from what lies beyond. And while it stands, (..)2016 TvShow: Game of Thrones Title: The Winds of Winter Season: 6 Episode 10