The Nobel Prize winner wrote the letters to socialist philosopher Corliss Lamont, who was accused by Senator Joseph McCarthy of being "un-American" for his suggestions that the US should maintain a relationship with the Soviet Union.
FOUR previously undiscovered letters written by Albert Einstein are to go under the hammer at an auction house.
The Nobel Prize winner wrote the letters to socialist philosopher Corliss Lamont, who was accused by Senator Joseph McCarthy of being "un-American" for his suggestions that the US should maintain a relationship with the Soviet Union.
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