David Hume (1711-1776) dened liberty (or freedom) as the “power of acting or of not acting, according to the determinations of the will; that is, if we choose to remain at rest, we may; if we choose to move, we also may” (Hume 1747/1975, p. 95). But already Hume recognized that choice alone does not lead to concrete action. After we make a choice, we need to be able to carry out what we choose and, unfortunately, our inner and outer environment sometimes impedes the execution of our choice. erefore, we must distinguish two constructs: freedom of action and freedom of will.