Contingencies of Reinforcement. Chapter 3: The environmental solution. Quote 5 Post author:B. F. Skinner Foundation Post published:March 28, 2018 Post category:Skinner's Quote of the Day “It simply happens that when the environment has been altered so that major reinforcers are no longer powerful, lesser reinforcers take over.” (p. 68) Subscribe to RSS feed here You Might Also Like Science and Human Behavior, Chapter 7: Operant Discrimination, Quote 14 May 2, 2016 Recent Issues. Chapter 5: Genes and Behavior. Quote 1 December 24, 2018 About Behaviorism, Chapter 4: Operant Behavior, Quote 3 March 27, 2017