1.   He had the revolutionary idea that gravity was not just a force that operated in a fixed background of space-time.

2.   In the event, however, the crisis served mainly to demonstrate the dominance of older pacifist traditions over revolutionary ideas.

3.   Unfortunately, the work containing his most revolutionary ideas has not been preserved.

4.   Among his more revolutionary ideas is a flat tax -- a proposal he has pushed without success for several years.

5.   And he believes that revolutionary ideas are scaring away Western countries that might otherwise help with money and guns.

6.   But as de Tocqueville realized, such a revolutionary idea could not be applied in the political realm without also resonating in all other aspects of American life.

7.   But Diffie and Hellman had a revolutionary idea.

8.   But at Fedex, he was part of a relatively new company with revolutionary ideas.

9.   But Rep. Robert Livingston, whose public opposition to the speaker signaled an anti-Gingrich stampede, proclaimed the newly revolutionary idea of conciliation toward the opposition.

10.   But the ruins speak to archeologists of a time when a revolutionary idea may have shaped the newest cities in antiquity.