Full Idea
Thrasymachus: right is the interest of the established government.
Gist of Idea
Is right just the interests of the powerful?
Source
Plato (The Republic [c.374 BCE], 339a)
Book Reference
Plato: 'Republic', ed/tr. Waterfield,Robin [OUP 1993], p.19
A Reaction
To believe this you would have to believe the powerful control not what is judged to be right, but also the ordinary language which expresses such judgements. Marxism explains that.