Dale Carnegie's first principle

Criticize, Condemn, Or Complain.
Criticizing another person not only damages that person's reputation, but puts a dent in our own.

"You will find yourself refreshed by the presence of cheerful people.  Why not make earnest effort to confer that pleasure on others? Half the battle is gained if you never allow yourself to say anything gloomy."

Lydia M. Child
1802-1880, Abolitionist and Writer



See the right way and the wrong way to use this principle 
 http://www.youtube.com/watch?v=hHvcLG936kw&feature=relatedDon't