“In the race of life, always back self-interest; at least you know it's trying.”

“If you always do what interests you, at least one person is pleased.”

Katharine Hepburn (1907–2003) film, stage, and television actress

“Ah, self-interest at last. Despite all of our differences, of race and time and distance, we achieve commonality. I understand self-interest.”

Lawrence M. Schoen (1959) American writer and klingonist

“So you know cats are interesting. They are kind of like girls. If they come and talk to you it's great. But if you try to talk to them it doesn't always go so well.”

Shigeru Miyamoto (1952) Japanese video game designer and producer

“We have always known that heedless self-interest was bad morals; we know now that it is bad economics.”

Franklin D. Roosevelt (1882–1945) 32nd President of the United States

“Give a man or woman back his self-respect, and in most cases-not all, but most-you also give back that person's ability to think with at least some clarity.”

Stephen King book Under the Dome

“You know how you're always trying to get things to come out perfect in art because it's real difficult in life”

Woody Allen (1935) American screenwriter, director, actor, comedian, author, playwright, and musician

“There's always one more way to do things and that's your way, and you have a right to try it at least once.”

Waylon Jennings (1937–2002) American country music singer, songwriter, and musician

“It is a human defect--to try to know one's self by the self of another.”

Robert Penn Warren (1905–1989) American poet, novelist, and literary critic

“I'm backing David Cameron's campaign out of pure, cynical self-interest.”

Boris Johnson (1964) British politician, historian and journalist