This is because knights of faith exist alone in isolation.

He exists in the public imagination as a man alone.

I could exist on it alone, lose myself completely, content to know nothing but the beauty of that voice.

Over 35 different such systems are reported to exist in Europe alone.

"She told me food does not exist alone," he said.

He, like every member of his party, could not exist alone.

At moments like this it seemed that the Park existed for him alone.

He existed alone in darkness, the world consisting only of water.

We are observing as a result of the economic crisis that monetary union cannot exist alone.

He'd existed alone, in a vacuum for so long now.