But Washington, and the allies, also have some vital lessons to learn from this recent experience.

Along the way they meet quirky characters, some with vital lessons to teach.

A vital lesson that the prison officers could learn from Group 4 is in public relations.

"After that vital lesson, we should be able to give them plenty of help."

Six vital lessons of the 1931 depression, The Times, 2008-12-29 page 22.

To the right, the Commune is a vital lesson in the perils of social disorder.

After only 24 hours on the course, the recruits must learn a vital lesson: every spy can break under pressure.

I'm heartened that a show with such an vital lesson was made.

He had learned a vital lesson from his recent brush with death.

That was easy: by far the most vital lesson I have ever learned is the importance of what we think.