Thomas Edison Quiz See how much you know about the prolific inventor by Beth RowenRead more about Thomas Edison. Question 1 (out of 10): What is the last word of the following quotation, which is one of Thomas Edison?s most famous lines? "Genius is 1% inspiration and 99% ____." luck imagination labor perspiration More Quizzes from Factmonster: Try another People Quiz ! Quiz Archive FEN Learning is part of Sandbox Networks, a digital learning company that operates education services and products for the 21st century.