I believe this is my civic duty, the manifestation of a quixotic notion that a minimal standard of polite behavior can be imposed upon New Yorkers.

Location Shot It's a rather quixotic notion: an online database of millions of photos indexed by location, submitted mostly by amateur photographers.

And he pitches his quixotic notion in a book, a Web site (breakingranks.net), in radio interviews and in lectures at universities and business gatherings that could be considered breeding farms for somebodies.

Mr. Bush seems more likely instead to use American blood and money to double down on his quixotic notion of "victory" to the end.

I abandoned any quixotic notion of shielding Deedra's true nature from the men and women examining her death.

The quixotic notion got a hearing before a City Council committee yesterday.

Mr. Goldblatt has talked instead about his "sometimes perverse, even quixotic notion of giving recognition."

Koots had a great advantage, and no quixotic notions ever entered his calculations.

And the Pentagon will have to stop being dogmatic, clinging to the quixotic notion that it only wants to succeed with its streamlined force and its trompe l'oeil coalition.

For many years, it seemed as if Mr. Snow had derailed a promising career to follow a quixotic notion that a multicultural approach to coverage of international affairs could find an audience and make a profit.