german-born theoretical physicist who is perhaps the western world's most influential philosopher. his E = mc2 is the world most famous equation on mass-energy equivalence. he became an american citizen in 1940. he published 300 scientific papers and 150 non-scientific works. he won nobel prize in 1921. 1879-1955

black conté pencil drawing
20x27 inch (51x69 cm) approx.