Reading Neil Baldwin’s biography of Thomas Edison and enjoyed this retort to a young chemist in Edison’s employ who had tried ‘every reasonable’ approach to solving his problem: “‘That’s just where your trouble has been,’ the Old Man interrupted. ‘You have tried only reasonable things. Reasonable things never work. Thank God you can’t think up any more reasonable things, so you’ll have to begin thinking up unreasonable things to try, and now you’ll hit the solution in no time.'”