"Remember no one can make you feel inferior without your consent. —Eleanor Roosevelt"

My interpretation is no matter what happens or what people do or say to you, what you think about yourself is what matters and not what others think. I believe if you have a healthy self-esteem and you are confident about yourself, nobody what people think about you is not important.
At times, people transfer their own fears, sorrow, regret and aggression to us in a bid to punish us or make us feel bad or inferior
That's my interpretation.