Full Idea
Are fine things different from or identical to fineness? They are different from fineness itself, but fineness itself is in a sense present in each of them.
Gist of Idea
Beautiful things must be different from beauty itself, but beauty itself must be present in each of them
Source
Plato (Euthydemus [c.385 BCE], 301a)
Book Reference
Plato: 'Early Socratic Dialogues', ed/tr. Saunders,Trevor J [Penguin 1987], p.366