Albert Einstein quotes (German born American Physicist who developed the special and general theories of relativity. Nobel Prize for Physics in 1921. 1879-1955)
Douglas Adams quotes (British comic Writer, 1952-2001)
Henry Louis Mencken quotes (American humorous Journalist and Critic of American life who influenced US fiction through the 1920s, 1880-1956)
Karl Popper quotes
Leonardo da Vinci quotes (Italian draftsman, Painter, Sculptor, Architect and Engineer whose genius epitomized the Renaissance humanist ideal. 1452-1519)
Mark Twain quotes (American Humorist, Writer and Lecturer. 1835-1910)
Buddha quotes (Hindu Prince Gautama Siddharta, the founder of Buddhism, 563-483 B.C.)
Friedrich Engels quotes (German Socialist philosopher, collaborator of Karl Marx, 1820-1895)
