Reflections on Behaviorism and Society. Chapter 14: The Force of Coincidence. Quote 1 Post author:B. F. Skinner Foundation Post published:December 30, 2019 Post category:Skinner's Quote of the Day “Coincidence is the heart of operant conditioning. A response is strengthened by certain kinds of consequences, but not necessarily because they are actually produced by it.” (p. 172) You Might Also Like Recent Issues. Chapter 8: The School of the Future. Quote 1 February 12, 2019 About Behaviorism, Chapter 12: The Question of Control, Quote 4 August 21, 2017 About Behaviorism, Chapter 5: Perceiving, Quote 1 April 14, 2017