In the chapter The Four Great Errors, he suggests that people, especially Christians, confuse the effect for the cause, and that they project the human ego and subjectivity on to other things, thereby creating the illusionary concept of being, and therefore also of the thing-in-itself and God. In reality, motive or intention is "an accompaniment to an act" rather than the cause of that act. By removing causal agency based on free, conscious will, Nietzsche critiques the ethics of accountability, suggesting that everything is necessary in a whole that can neither be judged nor condemned, because there is nothing outside of it. What people typically deem "vice" is in fact merely "the inability not to react to a stimulus." In this light, the concept of morality becomes purely a means of control: "the doctrine of will has been invented essentially for the purpose of punishment, that is of finding guilty."