5. The proper function of man is to live, not to exist.----Jake London People should live? Not just to survive. ----Jack London 6. It is easier to fight for principles than to live up to them.----Adlai Stevenson, British writer It is easier to fight for principles than to live up to them.----Adlai Stevenson, British writer It is easier to fight for principles than to live up to them. ----British writer Stevenson.A 7. I find life is an exciting business and most exciting when it is lived for others.----Helen Keller, American writer I find life is an exciting business and most exciting when it is lived for others.----Helen Keller, American writer I find life is an exciting business and most exciting when it is lived for others. Especially when you live for others. ----American writer Helen Keller 8. You have to believe in yourself. That's the secret of success.----Charles Chaplin People must believe in themselves? This is the secret of success. ----Chaplin