Chapter 10, Footnote #03
Expectation of pain
Whether it be the expectation of being burnt, or the pain that accompanies that expectation, that is the immediate internal motive spoken of may be difficult to determine. It may even be questioned, perhaps,whether they are distinct entities. Both questions, however, seem to be mere questions of words, and the solution of them altogether immaterial. Even the other kinds of motives, though for some purposes they demand a separate consideration, are, however, so intimately allied, that it will often be scarce practicable, and not always material, to avoid confounding them, as they have always hitherto been confounded.