Full Idea
Moderation and proportion seem, in effect, to be beauty and excellence. So now this property we're looking for, goodness, has taken refuge in beauty.
Clarification
'Beauty' is the Greek word 'kalos', which also translates as 'fine'
Gist of Idea
If goodness involves moderation and proportion, then it seems to be found in beauty
Source
Plato (Philebus [c.354 BCE], 64e)
Book Reference
Plato: 'Philebus', ed/tr. Waterfield,Robin [Penguin 1982], p.145