Verbal Behavior: Extended Edition. Chapter 17: Self-Strengthening of Verbal Behavior. Quote 14 Post author:B. F. Skinner Foundation Post published:January 27, 2026 Post category:Skinner's Quote of the Day A man may increase the probability that he will answer a letter by rereading it and thus generating an appropriate emotional disposition—to console the writer, say, or attack him. (p. 412) You Might Also Like Cumulative Record. Chapter 13: Teaching Machines. Quote 5 October 25, 2022 Cumulative Record. Chapter 17: Contingency Management in the Classroom. Quote 3 January 27, 2023 Contingencies of Reinforcement. Chapter 5: Operant behavior. Quote 11 May 29, 2018