1. Enquiry Concerning Human Understanding, 2nd ed. 80–80. Selby-Bigge Sect. viii, Part 1 § 62.
2. Enquiry Concerning Human Understanding, 2nd ed. 95–95. Selby-Bigge Sect. viii, Part 1 § 73.
3. Freedom: A New Analysis132–132. (See also P. Herbst, “Freedom and Prediction”,Mind, 1957, p. 1.)