Full Idea
If beauty never stays the same, how can it be something?
Clarification
'Beauty' is the Greek word 'kalos', which also translates as 'fine'
Gist of Idea
How can beauty have identity if it changes?
Source
Plato (Cratylus [c.377 BCE], 439e)
Book Reference
Plato: 'Complete Works', ed/tr. Cooper,John M. [Hackett 1997], p.155