The same question lies at the heart of his new novel.

Germany does once again lie at the heart of Europe.

That general idea lies at the heart of the present suit.

For surely they lie at the heart of higher education.

This lies at the heart of environmental law and policy.

And that, I think, lies at the heart of things.

The direct action committee lies at the heart of this success.

Today it lies at the heart of the city's arts district.

And that simple fact lies at the heart of the new community.

Public services lie at the heart of our social model.