Punishment serves a very valuable purpose- it's time to stop being lilly-livered.

I learned that towns of every size serve one valuable purpose or another.

"Focus groups serve a very valuable purpose, and I think Bob believes that, too," he said.

In fact, art has been discovered to serve many valuable corporate purposes.

And yet from a distance it was clear that the protests had served a valuable purpose.

Upcycling is giving a new, more valuable purpose to an item.

Yet the new novel's overstretched plot does serve several valuable purposes.

Even in the new economy, unemployment insurance still serves a valuable purpose.

We have to find a way to make it clear that we serve a very real and valuable purpose.

Obviously what the Pa'haquel are doing serves a valuable purpose- maybe even an essential one.