People who are rude deserve to be responded to. Maybe the next time they will think twice before saying something hurtful to another person.
I work with someone who is rude. When he makes a rude comment directed at me, I don’t respond. Then the only words left to hear are the rude ones left coming from his mouth. ~ Janelle Kurtz
There is never an excuse to be rude to anyone. You see the true colors of a person when they are rude. Their mask slips they show you who they really are. ~ Susan McMahon
Silence is a language too 
Silence has a mysterious calming effect 
Sometimes it’s better to just remain silent 
People come and go in your life