There are evil acts and there are evil people. Evil acts are, roughly, ones that involve the intentional infliction of suffering that is significant, undeserved and unnecessary. Those who consistently perform evil acts are evil people. Evil is not a supernatural force that takes possession of people. Neither is it a sequence of genes. An evil person does not have to be motivated by the thought of perpetrating evil. An evil person may act only from what they regard as the best of intentions. Most of the evil acts in the world are the result of simple stupidity: of people holding rationally and/or morally indefensible beliefs.

Discussions of evil are typically confused, being based on various unsubstantiated assumptions. One common assumption – the first dogma of evil, if you like – is that a person cannot be evil unless they are responsible for what they do. This erroneous assumption decisively shaped the discussion in the HowTheLightGetsIn debate. The assumption is that if we can show a person’s actions to be the result of factors beyond his or her control – the result of an unfortunate genetic profile or pernicious childhood circumstances, for example – then the person can no longer be classified as evil. This assumption is false. A person is evil if they consistently perform evil acts. Why they do this is irrelevant. If we discover that their persistent tendency to perform evil acts is the result of genetic or environmental misfortunes over which they have no control, then we would no longer be able to blame them for their actions. But this need not alter our assessment of them as evil.