How did St. Anselm of Canterbury use different degrees of goodness in the Monologion?

In his Monologion, St. Anselm of Canterbury employs Neoplatonic reasoning to demonstrate the existence of God by analyzing the degrees of perfection found in the world.12

Anselm observes that there is a multiplicity of things in the world that possess qualities such as goodness, justice, wisdom, and power in varying amounts. He argues that because these things exhibit these qualities to different degrees—some being more or less good or perfect than others—they must all participate in or share a common source.132

This reasoning leads to the recognition of an absolute, supreme standard that is "supremely good" and "supremely perfect" in itself. Anselm concludes that this ultimate, integrating norm, which exists above time and space and serves as the foundation through which all other beings exist, is God. By moving from the observation of relative, imperfect qualities to the necessity of an absolute, perfect source, Anselm seeks to prove God's existence using reason alone.123