John Adams quotes (American 2nd US President (1797-1801), 1735-1826)
John Locke quotes (English Philosopher who made great contributions in studies of politics, government and psychology. 1632-1704)
Martin Luther King, Jr. quotes (American Baptist Minister and Civil-Rights Leader. 1929-1968)
Mark Twain quotes (American Humorist, Writer and Lecturer. 1835-1910)
Abraham Lincoln quotes (American 16th US President (1861-65), who brought about the emancipation of the slaves. 1809-1865)
Marcus Tullius Cicero quotes (Ancient Roman Lawyer, Writer, Scholar, Orator and Statesman, 106 BC-43 BC)
Henry David Thoreau quotes (American Essayist, Poet and Philosopher, 1817-1862)