I saw this great quote in a book and can't recall the book. Who said
it and in what book or context if possible.

The quote is "We finally found a thrill for the person who no longer
seems thrillable. The ordinary!"

Thanks    Michael Audley

The man may not be seduced who has seen the ecstasy of being ecstatic;
it is more dazzling to catch a glimpse of the ecstasy of being
ordinary.
~ Gilbert Keith Chesterton, from ?Heretics? Omar and the Sacred Vine
http://wikisource.org/wiki/Heretics#Omar_and_the_Sacred_Vine