In Josephus' description of what happened after the destruction, he talks about the thickness of the stones in Jerusalem and the difficulty of destroying them.
"I would never have been able to breach these walls if it wasn't for the Jews fighting among themselves and the disputes between them." About the unlimited power we can attain and about the havoc that controversy can cause.
discussing the revival of Korah's social ideology in the modern era, and its the rejection of the basic concept in Jewish society that different people have different functions and different ways of serving HaShem.