"The theory of undirected evolution is already dead, but the work of science continues"

"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"

"Democracy is the art and science of running the circus from the monkey cage"

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

"Science never solves a problem without creating ten more"

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

"By the work one knows the workman"

"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"