Recent Issues. Chapter 12: The Behavior of Organisms at Fifty. Quote 9 Post author:B. F. Skinner Foundation Post published:April 11, 2019 Post category:Skinner's Quote of the Day “An operant was a kind of behavioral atom. True, I could take pressing a lever apart by extinguishing its parts separately (The Behavior of Organisms, 1938, p. 102), but even so it was close to a minimal unit.” (p. 125) You Might Also Like Beyond Freedom and Dignity. Chapter 3: Dignity. Quote 3 August 11, 2021 Cumulative Record. Chapter 11: Reinforcement Today. Quote 12 August 5, 2022 Contingencies of Reinforcement. Chapter 5: Operant behavior. Quote 14 June 1, 2018