Creatures of emotion

Today I was standing by the bulletin board at work while my food was cooking in the microwave. (Fava beans, mm mmm.) I flipped through some corporate bulletin on customer service and found the quote of the month.
It's on customer service, it's on motivation, it's on being a people person. Specifically, right now, it's also about editing slam poems to make them high scoring.

Here it is:

"When dealing with people, remember you are not dealing with creatures of logic, but with creatures or emotion, creatures bristling with prejudice and motivated by pride and vanity." - Dale Carnegie.