There are a great number of quotes, ideas, thoughts about criticism and being criticized.
The bad ones are rumors, gossip and insulting words – but they speak more about the person that is telling them, and actually has nothing with the one to who it is said. This is the distinction that we have to have in our mind. I personally always have two quotes in my mind:
Behind the good horse, there is always going to be a lot of dust.
I also found this: