Full Idea
First, Socrates, you told me justice is harming your enemies and helping your friends. But later it seemed that the just man, since everything he does is for someone's benefit, never harms anyone.
Gist of Idea
The just man does not harm his enemies, but benefits everyone
Source
Plato (Clitophon* [c.372 BCE], 410b)
Book Reference
Roochnik,David: 'The Tragedy of Reason: the Platonic logos' [Routledge 1990], p.101
A Reaction
Socrates certainly didn't subscribe to the first view, which is the traditional consensus in Greek culture. In general Socrates agreed with the views later promoted by Jesus.
Related Idea
Idea 2 We should not even harm someone who harms us [Socrates]