Full Idea
Thrasymachus: Justice or right is simply what is in the interest of the stronger party.
Clarification
'Justice' is the Greek word 'dikaiosuné', which is also general moral rightness
Gist of Idea
Justice is merely the interests of the stronger party
Source
Plato (The Republic [c.374 BCE], 338c)
Book Reference
Plato: 'Republic', ed/tr. Waterfield,Robin [OUP 1993], p.18
A Reaction
Not sure whether this is cynicism about the brutal realities of life, or cynicism about the very concept of justice.
Related Idea
Idea 2376 Injustice is the failure to keep a contract, and justice is the constant will to give what is owed [Hobbes]