Well, let me get your opinion about an example.
http://www.wikipedia.org/wiki/The_Grapes_of_Wrath
This page contains 3 quotes which seem to me to be excellent examples
of fair use that could realistically be reused by just about anyone
for just about any purpose.
There is a quote from the Swedish Academy's announcement of the Nobel
Prize for Steinbeck. There is a quote from Battle Hymn of The
Republic by Julia Ward Howe, explaining the title of the book.
There's a quote of Woody Guthrie's reaction to the film version of the
book.
"Battle Hymn of the Republic" was published in 1862, and is thus in the
public domain anyway.
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