“Criticism of others is futile and if you indulge in it often you should be warned that it can be fatal to your career.”
Dale Carnegie
“One mustn't criticize other people on grounds where he can't stand perpendicular himself”
Mark Twain
“Flatter me, and I may not believe you. Criticize me, and I may not like you. Ignore me, and I may not forgive you. Encourage me, and I will not forget you. Love me and I may be forced to love you.”
William Arthur Ward
“Any fool can criticize, condemn and complain and most fools do.”
Benjamin Franklin
“It is easier to be critical than correct.”
Benjamin Disraeli
“When I am abroad, I always make it a rule to never criticize or attack the government of my own country. I make up for lost time when I come home.”
Winston Churchill
“One should never criticize his own work except in a fresh and hopeful mood. The self-criticism of a tired mind is suicide.”
Charles Horton Cooley