“The secret of change is to focus all of your energy, not on fighting the old, but on building the new.”
This is actually a quotation http://books.google.com/books?id=FUIHmRHf8SUC&lpg=PA130&dq=%22not%20on%20fighting%20the%20old%20but%20on%20building%20the%20new%22&pg=PA130#v=onepage&q=%22not%20on%20fighting%20the%20old%20but%20on%20building%20the%20new%22&f=false from a character named Socrates in Way of the Peaceful Warrior: A Book that Changes Lives http://en.wikipedia.org/wiki/Way_of_the_Peaceful_Warrior, by Dan Millman.
Misattributed
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Socrates 168
classical Greek Athenian philosopher -470–-399 BCRelated quotes

As quoted in Beyond Civilization : Humanity's Next Great Adventure (1999), by Daniel Quinn, p. 137
From 1980s onwards

The Sunday Times, London (10 May 1992)

The New York Times, The New York Times Company, Defectors Say Church of Scientology Hides Abuse, Laurie Goodstein, March 6, 2010 http://www.nytimes.com/2010/03/07/us/07scientology.html?_r=0&pagewanted=all,