"Some countries were not convinced about solar energy at all, but this changed dramatically in the last two years," he says.

To be honest, I've never been convinced about community punishments.

"We are not convinced about the immediate stability of the system," he said.

How can we convince our own community about theater as a safe place.

Still, some doctors said they were not convinced about the drug's value.

Even on that, he found it hard to convince her about any basic thesis.

Still not convinced about who would play the Man himself, however.

You will have to convince your minister about that, not me.

I'm not convinced about the Launchpad, although it's early days yet.

In Philadelphia, similar efforts convinced about half of 72 people found living on the streets to go to shelters.