Upon Further Reflection. Chapter 10:Intellectual Self-Management in Old Age. Quote 8 Post author:B. F. Skinner Foundation Post published:November 12, 2020 Post category:Skinner's Quote of the Day “One of the more disheartening experiences of old age is discovering that a point you have just made—so significant, so beautifully expressed—was made in something you published a long time ago.” (p. 153) You Might Also Like Verbal Behavior: Extended Edition. Chapter 10: Supplementary Stimulation. Quote 13 July 2, 2025 Science and Human Behavior, Chapter 16: Thinking, Quote 21 October 10, 2016 About Behaviorism, Chapter 7: Thinking, Quote 16 May 31, 2017