Scholars and artists also worry that sharing authority devalues the hard-won expertise of professionals.

But economic pressures in the Soviet Union are forcing the nation to market its hard-won expertise in the West, in return for hard currency.

He hadn't been able to trust any other males to do the job properly; no one else had his unique and hard-won expertise.

But there are still plenty of intriguing job sectors out there for retirees who want to put their hard-won expertise to work or try something completely different.

Now Telegraph readers can benefit from her hard-won expertise.

All this is hard-won expertise that I'd rather not have needed.

The tendency to keep people in the agency goes back to the earliest days of the American space program and conserves hard-won expertise.

The medical profession are not interested, I imagine because my simple, cheap solution doesn't require hard-won expertise.

They want to keep their hard-won expertise.

Some go even further and change careers, turning their hard-won expertise into a full-time profession.