"I believe in the dignity of labor, whether with head or hand; that the world owes no man a living, but that it owes every man an opportunity to make a living."

"The greatest enemy of progress is 'good enough.'"

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

"The best business in the world is a well run oil company."

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