Upon Further Reflection. Chapter 6: The Evolution of Verbal Behavior. Quote 24 Post author:B. F. Skinner Foundation Post published:July 2, 2020 Post category:Skinner's Quote of the Day “The [current] chapter is speculative, but the speculation is under the restraint imposed by a commitment to the established principles of an operant analysis.” (p. 92) You Might Also Like Beyond Freedom and Dignity. Chapter 5: Alternatives to Punishment. Quote 5 November 8, 2021 About Behaviorism, Chapter 4: Operant Behavior, Quote 16 April 13, 2017 Science and Human Behavior, Chapter 16: Thinking, Quote 15 September 30, 2016