"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 it."
— Dale Carnegie (How to Win Friends & Influence People)

"Don't be afraid of enemies who attack you. Be afraid of the friends who flatter you."
— Dale Carnegie (How to Win Friends & Influence People)

"Most of the important things in the world have been accomplished by people who have kept on trying when there seemed to be no hope at all. "
— Dale Carnegie