Sentence examples similar to a meaninful cause from inspiring English sources

Want to know why they never opened up to developers in a meaninful way?

Don a mask for a cause.

Roger Chapin is a man with a cause.

One involves a cause of an action.

A worthy cause indeed.

A noble cause indeed.

"It's a psychological cause".

It was a lost cause.

"Attila" is a particular cause.

Is it a lost cause?

"It's a unifying cause".