Full Idea
The most important thing to try to understand is the character of goodness, because this is where anything which is moral (or whatever) gets its value and advantages from.
Gist of Idea
The main aim is to understand goodness, which gives everything its value and advantage
Source
Plato (The Republic [c.371 BCE], 505a)
Book Reference
Plato: 'Republic', ed/tr. Waterfield,Robin [OUP 1993], p.230
A Reaction
I think I'm with Aristotle on this. I understand a good lunch or a good person, but pure goodness just seems to be an empty placeholder. A vote in favour.