“When you complain you advertise your stupidity.”

“When you are optimistic, when you are not complaining, when you look at the good side of your life, everybody loves you.”

“There are huge advertising budgets only when there's no difference between the products. If the products really were different, people would buy the one that's better. Advertising teaches people not to trust their judgment. Advertising teaches people to be stupid.”

“Do you know what the difference is between PR and advertising? Advertising is when you say how great you are. PR is when other people say how great you are. PR is better.”

“If you feel trapped in a situation and are complaining about it, figure out how to untrap yourself and stop complaining. Save your energy for further figuring out and when there is an increase in courage.”

“Complaining is the absolute worst possible thing you could do for your health or your wealth. The worst! ... For the next seven days, I challenge you not to complain at all.”