It isn't what you have, or who you are, or where you are, or what you are doing that makes you happy or unhappy. It is what you think about.

About Dale Carnegie

Dale Carnegie ( KAR-nig-ee; spelled Carnagey until c. 1922; November 24, 1888 – November 1, 1955) was an American writer and teacher of courses in self-improvement, salesmanship, corporate training, public speaking, and interpersonal skills. Born into poverty on a farm in Missouri, he was the author of How to Win...