[para. 1]: "Traditional versions of Judaism, Christianity, and Islam all maintain that God is a perfect being (see Article 25, **PERFECT BEING THEOLOGY**). Famously, Anselm understood this doctrine to mean that God is a being than which none greater is conceivable. If conceivability does not exhaust possibility, the doctrine of divine perfection can be expressed in stronger terms: God is a being than which none greater is possible. This is often thought to entail that God is a necessary being (see Article 33, **NECESSITY**) who is essentially unsurpassable with respect to various attributes, such as power, knowledge, and goodness (see Articles 27, **OMNIPOTENCE**; 28, **OMNISCIENCE**; and 30, **GOODNESS**)."