“Criticism is futile because it puts a person on the defensive and usually makes him strive to justify himself. Criticism is dangerous, because it wounds a person’s precious pride, hurts his sense of importance, and arouses resentment.”

? Dale Carnegie, How to Win Friends & Influence People

Means

Criticism is pointless in light of the fact that it's anything but an individual on edge and normally causes him to endeavor to legitimize himself. Criticism is perilous, on the grounds that it's anything but an individual's valuable pride, harms his feeling of significance, and stimulates hatred.

It is very easy to Criticize,condemn and complain for of us do this. but it takes character and discretion to be understanding and pardoning.