 In a case of moral choice, there is a motivational conflict within the agent. She believes that a certain type of thing morally ought to be done (and she is motivated to do that), but she also has a self-interested desire to perform an action of a type that is, in the circumstances, incompatible with her doing what she believes she ought to do. Given her commitment to her moral belief, she makes an effort of will to resist temptation, an effort “to get [her] ends or purposes sorted out” (1996b: 126). If the choice is to be an SFW, then it is required that the strength of this effort be indeterminate; Kane likens its indeterminacy to that of the position or momentum of a microphysical particle. And the effort’s indeterminacy is held to be the source of the required indeterminism in the causal production of the choice. Again an analogy is drawn with an indeterministic understanding of microphysics. Just as whether a particle will penetrate a barrier might be undetermined because the particle does not have both a determinate position and a determinate momentum, so “[t]he choice one way or the other is undetermined because the process preceding and potentially terminating in it (i.e., the effort of will to overcome temptation) is indeterminate” (128).