Albert Einstein? Advertising copywriter? Apocryphal?
Dear Quote Investigator: Some people think that Albert Einstein’s name is magical. If they want to convince you of something or sell you something they invoke his revered name to prove that a genius agrees with whatever proposition they are peddling. Here is a collection of statements that the brilliant physicist supposedly said:
Compound interest is man’s greatest invention.
Compound interest is the greatest mathematical discovery of all time.
Compound interest is the eighth wonder of the world.
Compound interest is the most powerful force in the universe.
Compound interest is more complicated than relativity theory.
Did Einstein make any of these ridiculous remarks? Sometimes the wording of the quotations is different. For example, some sayings replace “compound interest” with “compounding interest”, “compounded interest”, or “compounding”. Are they all bogus?
Quote Investigator: Since this is a large topic involving multiple quotations this post will concentrate only on remarks claiming that compound interest is the greatest invention. QI has not located any significant evidence that Einstein made this comment.
The earliest instance QI has located in which compound interest was called “the greatest invention the world has ever produced” was dated 1916. The words appeared in an advertisement for the “Security Investment Co.” The speaker was a fictional character created by an advertising copywriter [GICI]:
The Greatest Invention
Three friends were having a discussion as to what was the greatest invention. One claimed the steam engine, another the telegraph.
The third friend sharpened his pencil and started to figure on a large piece of paper.
Finally he said: “Gentlemen, if the man who invented compound interest had of secured a patent on his idea he would have had without any doubt the greatest invention the world has ever produced.”
If Columbus had of placed one single dollar out at 6% interest compounded annually with instructions to pay the proceeds to you today, you would have over Ten Billion Dollars coming to you.
In 1976 the Wall Street Journal published an opinion article that ascribed to Einstein the belief that “compound interest” was “man’s greatest invention”. Einstein died in 1955, and this is the earliest instance located by QI of an attribution of this sentiment to him though the phrasing used in the newspaper is tentative [HKAE]:
All I can do is remind them of the truth of Albert Einstein’s alleged response when he was asked, “What do you, Mr. Einstein, consider to be man’s greatest invention?” He didn’t reply the wheel or the lever. He is reported to have said, “Compound interest.”
Here are additional selected citations in chronological order.
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