Will Durant quotes (American Writer and Historian, collaborator of his wife, Ariel Durant. 1885-1981)
Ralph Waldo Emerson quotes (American Poet, Lecturer and Essayist, 1803-1882)
Thomas Berger quotes
Johann Wolfgang von Goethe quotes (German Playwright, Poet, Novelist and Dramatist. 1749-1832)
Maria Montessori quotes (Italian Physician and Educator. 1870-1952)
Albert Einstein quotes (German born American Physicist who developed the special and general theories of relativity. Nobel Prize for Physics in 1921. 1879-1955)
Bertrand Russell quotes (English Logician and Philosopher 1872-1970)
Helen Keller quotes (American Author and Educator who was blind and deaf. 1880-1968)
Dr. Carl Sagan quotes (American Astronomer, Writer and Scientist, 1934-1996)
Plato quotes (Ancient Greek Philosopher He was the world's most influential philosopher. 428 BC-348 BC)
