This is understandable since according to Numenius everything that exists in the world as it is, depends on the Good, the God, which is the cause of everything's goodness in the world (fr. 19.5-7 19.5-7
So yes, Aquinas thought that moral law could be derived by human reason from reflection on natural facts … but only because he believed that both that reason and those natural facts were part of an intelligible and ordered universe governed by "something which is to all beings the cause of their being, goodness, and every other perfection; and this we call God".
Plutarch identifies the rational aspect with intellect, which he distinguishes from the soul, making the former the cause of order and goodness while the latter the cause of disorder and badness (De an. procr.
He rejected the idea that evil exists in itself, instead regarding it as a corruption of goodness, caused by humanity's abuse of free will.
Government: source of goodness or cause of woe?
What is essentially existent or good is the cause of what has existence or goodness by participation.
In it Numenius set out to outline his ontology and theology and, more specifically, to investigate the nature of the first principle, which is divine, the cause of everything, and the source of goodness (hence the title On the Good).
Good madam, of goodness remember me.
Be good for sake of goodness.
In the Phaedo, as we saw earlier, the character Socrates expresses the conviction that goodness is the true cause (aitia) of the beneficent arrangement of the natural world, though the nature of goodness continues to elude him as well.
