The politician is the poorest man in the world, the most empty man, the most hollow—stuffed with straw and nothing else.

I feel hollow inside, as if there’s a black hole where my heart was, as if I am caving in around myself.

So all the rest is O.K., but fame is a hollow ground, isn't it? It's an empty kind of thing.

For a long time he had been white smoke. He did not realize that until he left the hospital, because white smoke had no consciousness of itself. It faded into the white world of their bed sheets and walls; it was sucked away by the words of doctors who tried to talk to the invisible scattered smoke... They saw his outline but they did not realize it was hollow inside.

Well, I was living it, but a shared dream half-lived is a hollow thing

Sleepy Hollow.