stephenhawking Advertising Sondheim? 1979 Einstein Medal recipient "A Brief History of Time" physicist (1/8/42-3/14/18) who declined a knighthood: 2 wds "Death of a Salesman"? "A Brief History of Time" author doing sales? Physicist who won a 2009 Presidential Medal of Freedom ALS-stricken English physicist who's the subject of "The Theory of Everything": 2 wds