In the year 91 BCE, Alexander Yannai of the Hasmonean family succeeded his brother Yehuda Aristoblus to the throne of Judea. Alexander Yannai was a Sadducee who virulently persecuted the Pharisees. At one point during his bloody reign, following a victory he scored on a battlefield, he invited all the Torah scholars for a celebratory feast. During this feast he was slighted by one of the guests, which led him to execute all the Torah scholars in attendance.
A few of the sages managed to escape to the town of Sulukus in Syria. There, too, they encountered anti-Semitic enemies who murdered many of the exiled sages. The handful of surviving Torah scholars went in to hiding, finding refuge in the home of an individual named Zevadai. On the night of the 17th of Adar they escaped the hostile city of Sulukus.
Eventually these surviving scholars revived Torah Judaism. The date they escaped the clutches of death was established as a day of celebration.
Fighting evil is a very noble job. But it is not your mission in life.
Your job is to bring in more light.
Stay completely out of such battles, arguments, and debates.
Not because you aren't able to win. Not because your heart is too delicate to go to war.
But because every bit of your energy needs to be dedicated exclusively to strengthening the good that you have built, to give your very life for it.
Then, only then, can you succeed.