1.   Far from being a constraining force that merely keeps people honest and out of trouble, morality creates a fertile source of business motivation, inspiration, and innovation.

2.   This was a fertile source of incomprehension between him and Ellen.

3.   And as the members of the Cog Hill Trio also remind one another, folk music has long been a fertile source of classical themes.

4.   Annual reports, news stories, research updates from brokerage houses, and investment newsletters are fertile sources of such information.

5.   Beyond his role as the reputed hijacking ringleader, Mohamed Atta is proving to be a most fertile source of information for investigators.

6.   Clemmensen is a product of the Des Moines Buccaneers of the United States Hockey League, which has become a fertile source of Hockey East players.

7.   For many firms, existing clients are a fertile source of business for the nonlegal operations.

8.   For artist Claude Monet, the garden was a fertile source of inspiration.

9.   However, the transfer market is a fertile source for publicity, and this is where the MLS should gain intangible profits from the Friedel deal.

10.   Over the years, the habit by many local stations of tossing out old material transformed Dumpsters into fertile sources.