Michael Chabon in Henry Jenkins; Wyn Kelley; Katie Clinton (2013). Reading in a Participatory Culture: Remixing Moby-Dick in the English Classroom. Teachers College Press. p. 146. ISBN 978-0-8077-5401-6.
It has been well said that an author who expects results from a first novel is in a position similar to that of a man who drops a rose petal down the Grand Canyon of Arizona and listens for the echo.
P. G. Wodehouse in P G Wodehouse (26 March 2009). Cocktail Time. Random House. p. 29. ISBN 978-1-4090-3522-0.
To EU-funded Earth scientists it is evident that many parts of the Earth's crust have been extracted from the underlying mantle. However, the timing of new crust formation and recycling of old crust has proven to be an elusive issue.