John D. Rockefeller Quotes
I never placed my head upon the pillow at night without reminding myself that my success might only be temporary.
Citations
Nevins, Allan. John D. Rockefeller: The Heroic Age of American Enterprise. C. Scribner's Sons, 1940, Vol. 1, p. 195.
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John Davison Rockefeller Sr. was an American business magnate and philanthropist. He is widely considered the wealthiest American of all time and the richest person in modern history.