"When you don't work for a while, immediately you get a little black mark next to your name"

"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"

"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"

"Simplicity and repose are the qualities that measure the true value of any work of art"

"There is joy in work. There is no happiness except in the realization that we have accomplished something"

"The moment you think you understand a great work of art, it's dead for you"

"Seek the lofty by reading, hearing and seeing great work at some moment every day"

"Rest when you're weary. Refresh and renew yourself, your body, your mind, your spirit. Then get back to work"