Why don't you look at your own problems instead? They're tearing you apart from every direction. Some attack you from the outside. Others burn inside your heart. Even if you don't know much about yourself, people haven't sunk so low that you have time to criticize those who are better than you.
Why do you not rather cast your eyes around yourselves at the ills which tear you to pieces on every side, some attacking you from without, some burning in your own bosoms? However little you know your own place, mankind has not yet come to such a pass that you can have leisure to wag your tongues to the reproach of your betters.