Why Neoplatonists treated evil as an absence
Neoplatonism pictured reality as flowing from a highest spiritual principle, often called the One. The closer something was to this source, the more unified, complete, and good it was; farther away, things were more limited and imperfect. In this framework, evil was not a rival force created alongside goodness. It was a privation: the lack of a good that something ought to have.
The idea is easier to grasp through darkness. Darkness does not need its own substance to fill a room; it is what we call the room when light is absent. Likewise, a damaged body is not made of a special substance called evil. It is a living body missing some of the health or function that would make it whole.
What this meant for wrongdoing
This account made evil a defect in something real, rather than an independent power. A cruel act, for example, could be understood as a human capacity for choice turned away from wisdom, justice, or care. The capacity itself belongs to a being that has goodness; the failure lies in how that capacity is used.
That did not mean suffering was imaginary or that harmful actions did not matter. It offered a way to explain how a world grounded in ultimate goodness could still contain corruption: goodness could be diminished or damaged without evil needing a source equal to the good. The unsettling implication is that evil, on this view, has no independent substance to defeat—it is what remains when the good in a person or thing is missing.
