A kid cannot learn with an empty stomach.

It's no fun to protest on an empty stomach.

No man can be a patriot on an empty stomach.

An empty stomach is not a good political adviser.

Hunger and fear are the only realities in dog life: an empty stomach makes a fierce dog.

The night seemed long. Wilbur's stomach was empty and his mind was full. And when your stomach is empty and your mind is full, it's always hard to sleep.