Welsh literature of the High Middle Ages demonstrated "vigor and a sense of commitment" as new ideas reached Wales, even in "the wake of the invaders", according to historian John Davies.

By demonstrating vigor, Mr. Reagan defused concerns about his age (he turned 69 during the primary campaign) and won New Hampshire, drawing more than half the votes.

In exploring them, "Another World" demonstrates the extraordinary immediacy and vigor of expression we have come to expect from Barker - brilliant touches of observation, an unfailing ear for dialogue, a talent for imagery that is darting and brief but wonderfully apt.

Casey was also a doer - as the O.S.S. officer who put 100 intelligence agents into Hitler's Europe in World War II, he had demonstrated vigor and daring in the cause of patriotism, the same qualities that made him the driving spirit behind the contra war and the Iran opening.

The artist's paintings never demonstrated vigor - and for this reason, the show might profitably have devoted space to works by related Puerto Rican painters so a context for Campeche's accomplishments could better be established.

He brings wide experience, demonstrated leadership and youthful vigor.

But he "continues to demonstrate excellent health and vigor," his physician, Dr. E. Connie Mariano, said today after supervising his second annual medical checkup as President.

"If you're McCain, who will be over 70 by 2008, you'll want to make doubly sure to demonstrate your alertness and vigor," Mr. Carlson wrote just after 10 p.m. Tuesday.

To anticipate one's demise is perhaps a bit scary, but elsewhere Mr. Gillespie represents himself bare-chested, in a pair of shorts, as if to demonstrate vigor.