"When life makes you have to put up with mean and hateful people, just think of them as sandpaper. They may scratch you and rub you the wrong way time and time again...But eventually, you end up smooth and polished. But the sandpaper, it’s just going to be worn out and useless."
Don't let the criticism of others bring you down. Instead use their harsh words to build yourself up. In the end, you will become stronger, braver and wiser. And they will be left with nothing more to harm you with.
*Adapted by me from Fighting Temptations