Verbal Behavior: Extended Edition. Chapter 10: Supplementary Stimulation. Quote 23 Post author:B. F. Skinner Foundation Post published:July 16, 2025 Post category:Skinner's Quote of the Day We understand anything which we ourselves say with respect to the same state of affairs. We do not understand what we do not say. (p. 278) You Might Also Like Cumulative Record. Chapter 20: What Is Psychotic Behavior? Quote 6 March 30, 2023 Cumulative Record. Chapter 13: Teaching Machines. Quote 19 November 14, 2022 Contingencies of Reinforcement. Chapter 5: Operant behavior. Quote 5 May 21, 2018