Three things are essential to a correct judgment - experience, knowledge and the power of expressing it.
--Socrates

Pass no judgment and you will not be judged.
--"Matthew" (7:3)

The joy of parents are secret and so are their grieves and fears.
--Francis Bacon (1561-1626)

It is better to suffer, wrong to do it.
--Gorgias
This is about wrong actions. It is based on the philosophy that everybody has his own Karm (actions) on his head, so why do you take any bad Karm on your head. Let others take it. You should always do good.