Full Idea
One should never return an injustice nor harm another human being no matter what one suffers at their hands.
Gist of Idea
We should not even harm someone who harms us
Source
Socrates (reports of last days [c.399 BCE]), quoted by Plato - Crito 49c
Book Reference
Plato: 'The Last Days of Socrates', ed/tr. Tredennick,Hugh [Penguin 1969], p.88
A Reaction
Jesus of Nazareth was not the first person to make this suggestion.
Related Ideas
Idea 9781 Tolerance and love are strategies to avoid encountering our neighbours [Zizek]
Idea 1590 The just man does not harm his enemies, but benefits everyone [Plato]