“Everybody likes a compliment. [starting of one of his letter]”

— Abe Lincoln
 

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

— Dale Carnegie
 

 
“Don’t criticize them; they are just what we would be under similar circumstances.”

— Abraham Lincoln
 

 
“When dealing with people, let us remember we are not dealing with creatures of logic. We are dealing with creatures of emotion, creatures bristling with prejudices and motivated by pride and vanity.”

— Dale Carnegie
 

 
“I will speak ill of no man, and speak all the good I know of everybody.”

— Benjamin Franklin