Mark Twain quotes (American Humorist, Writer and Lecturer. 1835-1910)
Henry David Thoreau quotes (American Essayist, Poet and Philosopher, 1817-1862)
Seneca quotes (Roman philosopher, mid-1st century AD)
Charles Dickens quotes (English novelist, generally considered the greatest of the Victorian era, 1812-1870)
Quentin Crisp quotes (English Author, 1908-1999)
Charles L. Allen quotes
Martin Luther King, Jr. quotes (American Baptist Minister and Civil-Rights Leader. 1929-1968)
Karl Marx quotes (German political Philosopher and revolutionary, 1818-1883)