"I learned from Mr. Wrigley, early in my career, that loyalty wins and it creates friendships. I saw it work for him in his business"

"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"

"Business is the salt of life"

"One machine can do the work of fifty ordinary men. No machine can do the work of one extraordinary man"

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

"Raising children is an incredibly hard and risky business in which no cumulative wisdom is gained: each generation repeats the mistakes the previous one made"

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

"All lasting business is built on friendship"

"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"

"It is the quality of our work which will please God and not the quantity"