Edward Teller quotes (Hungarian-born American nuclear physicist, b.1908)
Dr. Carl Sagan quotes (American Astronomer, Writer and Scientist, 1934-1996)
Galileo Galilei quotes (Italian natural Philosopher, Astronomer and Mathematician who made fundamental contributions to the development of the scientific method and to the sciences of motion, astronomy and strength of materials. 1564-1642)
George Bernard Shaw quotes (Irish literary Critic, Playwright and Essayist. 1925 Nobel Prize for Literature, 1856-1950)
Richard Feynman quotes (American theoretical physicist, 1918-1988)
Immanuel Kant quotes (German Philosopher one of the foremost thinkers of the Enlightenment. 1724-1804)
Thomas Berger quotes
Albert Einstein quotes (German born American Physicist who developed the special and general theories of relativity. Nobel Prize for Physics in 1921. 1879-1955)
Ralph Waldo Emerson quotes (American Poet, Lecturer and Essayist, 1803-1882)
Ron Peterson quotes
Isaac Asimov quotes (Russian born American science-fiction Writer and Biochemist. 1920-1992)