The Nobel-winning scientist's musings, on a handwritten note, shed light on one of the great modern minds.
JERUSALEM—While Albert Einstein's theory of happiness may be relative, it fetched $1.3 million at a Jerusalem auction.
Tuesday's bidding began at $2,000 and quickly escalated. Winner's would not disclose the buyer or seller.
Einstein won a Nobel Prize in physics for discovering the photoelectric effect. He died in 1955.