The Road

He lay listening to the water drip in the woods. Bedrock, this. The cold and the silence. The ashes of the late world carried on the bleak and temporal winds to and fro in the void. Carried forth and scattered and carried forth again. Everything uncoupled from its shoring. Unsupported in the ashen air. Sustained by a breath, trembling and brief. If only my heart were stone.

(...)

They passed through the city at noon of the day following. He kept the pistol to hand on the folded tarp on top of the cart. He kept the boy close to his side. The city was mostly burned. No sign of life. Cars in the street caked with ash, everything covered with ash and dust. Fossil tracks in the dried sludge. A corpse in a doorway dried to leather. Grimacing at the day. He pulled the boy closer. Just remember that the things you put into your head are there forever, he said. You might want to think about that.
You forget some things, dont you?
Yes. You forget what you want to remember and you remember what you want to forget.

Cormac McCarthy, 2006 (The Road, Vintage International, p. 11-12)