"Singing songs like 'The Man I Love' or 'Porgy' is no more work than sitting down and eating Chinese roast duck, and I love roast duck"

"The biggest coward is a man who awakens a woman’s love with no intention of loving her"

"Love is like war: easy to begin but very hard to stop"

"A leader is best when people barely know he exists, when his work is done, his aim fulfilled, they will say: we did it ourselves"

"Talent in cheaper than table salt. What separates the talented individual from the successful one is a lot of hard work"

"Mother love is the fuel that enables a normal human being to do the impossible"

"Work spares us from three evils: boredom, vice, and need"

"The best preparation for good work tomorrow is to do good work today"

"I was married to Margaret Joan Howe in 1940. Although not a scientist herself she has contributed more to my work than anyone else by providing a peaceful and happy home"

"The highest form of vanity is love of fame"

"I love to travel, but hate to arrive"