The results of discipline and might without humility are obvious. The greatest catastrophes have occurred as a result of people sitting in arrogant judgement of others. Am I arrogant in the name of justice (what I consider as just)? Do I ever think that I sit on a higher pedestal and bestow judgement on my subjects below? What about my children? Students?
A judge has to be the most humble of creatures, recognizing that he sits in judgement not by his own merit but only because G‑d gave the right to judge His children.
Exercise for the day: Don't judge anyone unless you are doing so selflessly with no personal bias.