The note was written during Einstein's 1922 visit to Japan after he was informed that he would be awarded the Nobel Prize in Physics.
A picture taken on October 19, 2017, shows Gal Wiener, owner and manager of the Winner's auction house in Jerusalem, displays two notes written by Albert Einstein, in 1922, on hotel stationary from the Imperial Hotel in Tokyo Japan.
Written on the note was Einstein's theory of happiness, which you'll be interested to know is that "a quiet and modest life brings more joy than a pursuit of success bound with constant unrest". He did not have a tip available for a bellboy who came to his room, so he decided to make the most of his popularity.
While he was impressed, he also felt embarrassed by the publicity and wrote down his thoughts from his hotel room at the Imperial Hotel in Tokyo.
The note eventually fetched $1.56 million. According to Winner's auctions, the winning bid for the note far exceeded the pre-auction estimate of between $5,000 and $8,000.
Bidding, in person, online and by phone, started at $2,000.
The physicist told the messenger it was possible the memos would be worth much more than a standard tip in the future, according to Winners Auctions, a major auction house in Israel.
Another note Einstein gave the bellboy, which reads "Where there's a will there's a way", was sold for over United States dollars 200,000.
Two other letters Einstein wrote in later years were also auctioned on Tuesday, fetching prices of $33,600 and $9,600.
The seller was reported to be a relative of the messenger.
Einstein was among the founders of the Hebrew University of Jerusalem and gave the university's first scientific lecture in 1923.
The world-renowned theoretical physicist Albert Einstein is known for presenting the world with the Theory of Relativity, but now he is making headlines for something else.