Related by context. Frequent words. (Click for all words.) 56 Salk 54 Albert Einstein 48 Louis Pasteur 47 Einstein 45 polio vaccine 44 Benjamin Franklin 43 Albert Schweitzer 43 Nikola Tesla 43 Eleanor Roosevelt 42 inventor 42 Bertrand Russell 41 Feynman 41 Charles Lindbergh 40 penicillin 40 Clara Barton 40 Roosevelt 40 Buckminster Fuller 39 Mother Teresa 39 Theodore Roosevelt 39 Millard Fillmore 39 inventions 39 Orville Wright 39 Florence Nightingale 39 Winston Churchill 38 Craig Venter 38 Mother Theresa 38 John F. Kennedy 38 Dean Kamen 38 Stephen Hawking 38 Eisenhower 38 Horace Mann 38 Woodrow Wilson 37 Nobel Prize 37 Walt Whitman 37 invented 37 Burt Rutan 37 D. Rockefeller 37 Margaret Sanger 37 G. Harding 37 Franklin Delano Roosevelt 37 Rockefeller 36 Nobel Prize winners 36 Penicillin 36 invent 36 Aldous Huxley 36 Mark Twain 36 inventors 36 Teddy Roosevelt 36 Christopher Reeve 36 Kurt Vonnegut 36 Nobel Laureate 36 famously 36 Louis Brandeis 36 Grover Cleveland 36 Edison 36 co discoverer 36 Melinda Gates Foundation 36 Carl Sagan 36 Helen Keller 35 Isaac Newton 35 Dwight D. Eisenhower 35 Nobel Prizes 35 philanthropist 35 Borlaug 35 Francis Crick 35 Paul Robeson 35 discoverer 35 Sigmund Freud 35 Tuskegee Institute 35 immortal 35 Johnny Appleseed 35 invention 35 mathematicians 35 Randy Pausch 34 geniuses 34 Oliver Wendell Holmes 34 Gerald Ford 34 Mel Brooks 34 Nobel laureates 34 mathematician 34 General Douglas MacArthur 34 Lindbergh 34 Inventors Hall 34 Franklin Roosevelt 34 AIDS Vaccine Initiative 34 Nobel laureate 34 FDR 34 Franklin D. Roosevelt 34 Dwight Eisenhower 34 MacArthur 34 eradicate polio 34 duPont 34 famous 34 Harry Truman 33 UNITAID 33 Adlai Stevenson 33 Abraham Lincoln 33 John Jacob Astor 33 recombinant DNA 33 Jane Goodall 33 Nobel Laureates