Full Idea
By happy you mean in secure enjoyment of what is good and beautiful? - Certainly.
Gist of Idea
Happiness is secure enjoyment of what is good and beautiful
Source
Plato (The Symposium [c.373 BCE], 202c)
Book Reference
Plato: 'The Symposium', ed/tr. Hamilton,W [Penguin 1951], p.80
A Reaction
We seem to have lost track of the idea that beauty might be an essential ingredient of happiness.