Out of this evening's effort, he had gained one thing which might prove vital to the plans that lay ahead.

His mastery of the difficult art proved vital to Pakistan's success.

That's why I also believe leadership will prove vital.

Such images can prove vital to investigators long after the crime scene is gone.

Her support proved vital for a number of reasons.

Two other changes proved vital to allow the army to profit from the reform of operational practice.

This cost him 26 points for the green jersey which could prove vital in the end.

She also proved vital to the successful campaign for woman suffrage in Colorado.

I feel that these measures will prove vital for the future of the information society.

The short delay may prove vital for all of us.