Quotation
“A non-doer is very often a critic-that is, someone who sits back and watches doers, and then waxes philosophically about how the doers are doing. It's easy to be a critic, but being a doer requires effort, risk, and change.”
Dr. Wayne W. Dyer
The idea behind the quotation
People who do not take action often criticize those who do, but achieving something takes effort, accepting risk, and being willing to change.