Being critical is easy.

Quest

I  really liked this little cartoon because it illustrates the fact that no matter what you do, someone will always be there to criticize you for it. I don't like criticism in general because it is seldom constructive. Being critical is easy. You don't have to do anything. You don't have to fix anything. You just get to point out what you think is wrong with other people.

What is hard is doing something to make the world better. If people took all the energy they put into criticism and applied it to helping other people or finding solutions to problems think of what amazing progress we could make.