"If someday they say of me that in my work I have contributed something to the welfare and happiness of my fellow man, I shall be satisfied"

"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"

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

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

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

"By the work one knows the workman"

"The man who makes everything that leads to happiness depends upon himself, and not upon other men, has adopted the very best plan for living happily. This is the man of moderation, the man of manly character and of wisdom"

"Happiness is not a state to arrive at, but a manner of traveling"

"The only way to do great work is to love what you do"

"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"