“To be successful, you have to have your heart in your business, and your business in your heart” is a popular business quotation credited to Thomas J. Watson, Sr. (1874-1956), an IBM chairman and an employee of the company for 42 years. “You have to put your heart in the business and the business in your heart” is cited in the book The Lengthening Shadow: The Life of Thomas J. Watson (1962), by Thomas Graham Belden and Marva Robins Belden. It is not known at what date Watson said this during his lifetime.
 
   
Wikipedia: Thomas J. Watson
Thomas John Watson, Sr. (February 17, 1874 – June 19, 1956) was the chairman and CEO of International Business Machines (IBM), who oversaw that company’s growth into an international force from 1914 to 1956. Watson developed IBM’s distinctive management style and corporate culture, and turned the company into a highly-effective selling organization, based largely around punched card tabulating machines. A leading self-made industrialist, he was one of the richest men of his time and was called the world’s greatest salesman when he died in 1956.
 
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The Lengthening Shadow:
The Life of Thomas J. Watson
By Thomas Graham Belden and Marva Robins Belden
Boston, MA: Little, Brown
1962
Pg. 127:
But Watson believed that another kind of involvement in business was necessary, one that was essentially spiritual commitment.
 
“You cannot be a success in any business without believing that it is the greatest business in the world,” he said. “You have to put your heart in the business and the business in your heart.”
 
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The Computer Prophets
By Jerry Martin Rosenberg
New York, NY: Macmillan
1969
Pg. 135:
Watson placed emphasis on loyalty, unity, idealism and enthusiasm: “You cannot be a success in any business without believing that it is the greatest business in the world. You have to put your heart in the business and the business in your heart.”
 
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The Oxford Dictionary of Quotations
Edited by Elizabeth Knowles
New York, NY: Oxford University Press
1999
Pg. 804:
Thomas Watson Snr. 1874-1956
American businessman; Chairman of IBM 1914-52
“You cannot be a success in any business without believing that it is the greatest business in the world…You have to put your heart in the business and the business in your heart.”
Robert Sobel IBM: Colossus in Transition (1981)
   
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Making a Life, Making a Living:
Reclaiming Your Purpose and Passion in Business and in Life
By Mark Albion
New York, NY: Warner Books
2000
Pg. ?:
To be successful, have your heart in your business, and your business in your heart. —THOMAS WATSON
   
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Build Your Business Stronger and Do It Quickly!:
Sales, Marketing, Planning, Management, Finance, and More!
By Ronald E. Guzik
Huntington, WV: Humanomics
2002
Pg. 139:
You have to have your heart in your business and the business in your heart.
—Thomas J. Watson, Sr., founder, IBM
   
Best Quotes and Sayings
FRIDAY, NOVEMBER 7, 2008
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To be successful, you have to have your heart in your business, and your business in your heart. ~Thomas Watson, Sr.
   
Resource Nation
26 Best Motivational Business Quotations
by gbravo on February 4, 2009
(...)
15. To be successful, you have to have your heart in your business, and your business in your heart – Thomas Watson, Sr.
 
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61 Steps to Becoming a Successful Young Entrepreneur
BY NICHOLAS TART ON MARCH 16, 2011
(...)
“To be successful, you have to have your heart in your business, and your business in your heart.”
THOMAS J. WATSON · Founder of IBM
 
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101 Ways to Rock Your World:
Everyday Activities for Success Every Day
By Dayna Steel
Bloomington, IN: iUniverse
2012
Pg. 56:
To be successful, you have to have your heart in your business, and your business in your heart. —Thomas Watson Sr.