Full Idea
The same people often changed laws according to circumstances; there is no natural law. There is no such thing as justice or, if there is, it is the height of folly, since a man injures himself in taking thought for the advantage of others.
Gist of Idea
People change laws for advantage; either there is no justice, or it is a form of self-injury
Source
report of Carneades (fragments/reports [c.174 BCE]) by Lactantius - Institutiones Divinae 5.16.4
Book Reference
Long,A.A.: 'Hellenistic Philosophy' [Duckworth 1986], p.104
A Reaction
[An argument used by Carneades on his notorious 156BCE visit to Rome, where he argued both for and against justice] This is probably the right wing view of justice. Why give other people what they want, if it is at our expense?