No introduction needed.

"Justice is a maiden who was born from Zeus.
The gods who live on Olympus honor her
and whenever someone wrongs her by bearing false witness
she sits straightaway at the feet of Zeus, Kronos’ son
and tells him the plans of unjust men so that the people
will pay the price of the wickedness of kings who make murderous plans
and twist her truth by proclaiming false judgments.
Keep these things in mind, bribe-swallowing kings:
whoever wrongs another also wrongs himself;
an evil plan is most evil for the one who makes it.
The eye of Zeus sees everything and knows everything
and even now, if he wishes, will look on us and not miss
what kind of justice the walls of our city protects.
Today, I wouldn’t wish myself to be a just man among men
nor my son, since it bad to be a just man
If anyone who is more unjust has greater rights.
But I hope that Zeus, the counselor, will not let this happen."
[Hesiod, Works and Days 256-273]