Full Idea
The second stage of progress is to realise that beauty of soul is more valuable than beauty of body.
Clarification
'Soul' is the Greek word 'psuché', which covers mind and consciousness and life
Gist of Idea
Stage two is the realisation that beauty of soul is of more value than beauty of body
Source
Plato (The Symposium [c.373 BCE], 210b)
Book Reference
Plato: 'The Symposium', ed/tr. Hamilton,W [Penguin 1951], p.92