“A day of worry is more exhausting than a day of work”

“A day of worry is more exhausting than a day/week of work” is a saying that has been printed on many images.
 
“Work is as necessary for peace of mind as for health of body. A day of worry is more exhausting than a week of work. Worry upsets our whole system, work keeps it in health and order” was printed in the book The Use of Life (1894) by Sir John Lubbock (1834-1913). “A day of worry is more exhausting than a week of work” is what is popularly quoted.
 
“A day of worry is more exhausting than a day of work” was credited to John Lubbock and printed in the Sunday News and Leader (Springfield, MO) on November 12, 1967.
 
         
Wikipedia: John Lubbock, 1st Baron Avebury
John Lubbock, 1st Baron Avebury, 4th Baronet, PC, DL, FRS, FRAI (30 April 1834 – 28 May 1913), known as Sir John Lubbock, 4th Baronet, from 1865 until 1900, was an English banker, Liberal politician, philanthropist, scientist and polymath. Lubbock worked in his family company as a banker but made significant contributions in archaeology, ethnography, and several branches of biology. He coined the terms “Paleolithic” and “Neolithic” to denote the Old and New Stone Ages, respectively. He helped establish archaeology as a scientific discipline, and was influential in debates concerning evolutionary theory.[1] He introduced the first law for the protection of the UK’s archaeological and architectural heritage. He promoted the establishment of public libraries and was also a founding member of the X Club.