Cumulative Record: Definitive Edition (1999). Chapter 7: Are Theories of Learning Necessary. Quote 3 Post author:B. F. Skinner Foundation Post published:May 17, 2021 Post category:Skinner's Quote of the Day No empirical statement is wholly nontheoretical . . . because evidence is never complete, nor is any prediction probably ever made wholly without evidence. (p. 69) You Might Also Like Cumulative Record. Chapter 11: Reinforcement Today. Quote 6 July 28, 2022 Contingencies of Reinforcement. Chapter 9: The inside story. Quote 10 September 18, 2018 Cumulative Record. Chapter 10: The Experimental Analysis of Behavior. Quote 29 July 12, 2022