Cumulative Record: Definitive Edition (1999). Chapter 7: Are Theories of Learning Necessary. Quote 2 Post author:B. F. Skinner Foundation Post published:May 14, 2021 Post category:Skinner's Quote of the Day Certain statements are also theories simply to the extent that they are not yet facts. A scientist may guess at the result of an experiment before the experiment is carried out. (p. 69) You Might Also Like Verbal Behavior: Extended Edition. Chapter 15: Self-Editing. Quote 15 December 3, 2025 Verbal Behavior: Extended Edition. Appendix: The Verbal Community. Quote 1 May 12, 2026 Cumulative Record. Chapter 17: Contingency Management in the Classroom. Quote 13 February 10, 2023