History Lessons

Pondering these days; if a wrong, unjust, cruel action was imposed on to you and victimized you, would you consider doing the same thing to others? Does it become right and just if you impose the same thing on them?

I cannot stop but wonder, does the history repeat itself? Or it just manifests it's fundamental which never changes but changes form from one sect, nation, race to another sect, nation, race?

What is most baffling these days is the similarity of what some suffered from and what they themselves are imposing on to others.