<P> A compatibilist interpretation of Aquinas's view is defended thus: "Free - will is the cause of its own movement, because by his free - will man moves himself to act . But it does not of necessity belong to liberty that what is free should be the first cause of itself, as neither for one thing to be cause of another need it be the first cause . God, therefore, is the first cause, Who moves causes both natural and voluntary . And just as by moving natural causes He does not prevent their acts being natural, so by moving voluntary causes He does not deprive their actions of being voluntary: but rather is He the cause of this very thing in them; for He operates in each thing according to its own nature ." </P> <P> Historically, most of the philosophical effort invested in resolving the dilemma has taken the form of close examination of definitions and ambiguities in the concepts designated by "free", "freedom", "will", "choice" and so forth . Defining' free will' often revolves around the meaning of phrases like "ability to do otherwise" or "alternative possibilities". This emphasis upon words has led some philosophers to claim the problem is merely verbal and thus a pseudo-problem . In response, others point out the complexity of decision making and the importance of nuances in the terminology . </P> <P> The problem of free will has been identified in ancient Greek philosophical literature . The notion of compatibilist free will has been attributed to both Aristotle (fourth century BCE) and Epictetus (1st century CE); "it was the fact that nothing hindered us from doing or choosing something that made us have control over them". According to Susanne Bobzien, the notion of incompatibilist free will is perhaps first identified in the works of Alexander of Aphrodisias (third century CE); "what makes us have control over things is the fact that we are causally undetermined in our decision and thus can freely decide between doing / choosing or not doing / choosing them". </P> <P> The term "free will" (liberum arbitrium) was introduced by Christian philosophy (4th century CE). It has traditionally meant (until the Enlightenment proposed its own meanings) lack of necessity in human will, so that "the will is free" meant "the will does not have to be such as it is". This requirement was universally embraced by both incompatibilists and compatibilists . </P>

Who came up with the idea of free will
find me the text answering this question