John D. Rockefeller

“I can think of nothing less pleasurable than a life devoted to pleasure.”

“Singleness of purpose is one of the chief essentials for success in life, no matter what may be one's aim.”

“Don't be afraid to give up the good to go for the great.”

“Giving is the secret of a healthy life. Not necessarily money, but whatever a person has of encouragement, sympathy and understanding.”