Charles Darwin quotes (English Naturalist and Author of the theory of evolution by natural selection. 1809-1882)
Heinz R. Pagels quotes
Isaac Asimov quotes (Russian born American science-fiction Writer and Biochemist. 1920-1992)
Hippocrates quotes
Gertrude Stein quotes (American Writer, among the first to appreciate and collect the works of major artists. 1874-1946)
Thomas Berger quotes
Ralph Waldo Emerson quotes (American Poet, Lecturer and Essayist, 1803-1882)