New York - A handwritten letter by Albert Einstein in which the physicist doubts the existence of God was auctioned on Tuesday for $2.89m.
It was a record for an Einstein letter and far surpassed its estimated value of $1-1.5m, Christie's said.
A 1939 letter in which Einstein warned then-president Franklin D. Roosevelt about Germany's atom bomb preparations was auctioned for $2.1m in 2002.
In the letter sold on Tuesday, dated 1954 and written in German to philosopher Eric Gutkind, Einstein said he did not believe in God.
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"The word God is for me nothing but the expression and product of human weaknesses," Einstein wrote.
"The Bible, a collection of venerable but still rather primitive legends."
The letter was last sold in 2008 to a private collector for $404 000, Christie's said.
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