Alfred Marshall quotes (British co-founder of the neoclassical school of economics, 1842-1924)
French Proverb quotes
Isaac Newton quotes (English Mathematician and Physicist, "father of the modern science", 1642-1727)
Anthony Robbins quotes (American advisor to leaders)
H. G. Wells quotes (English Novelist, Journalist, Sociologist and Historian. Best known for his science fiction books. 1866-1946)
Albert Schweitzer quotes (German medical Missionary, Theologian, Musician and Philosopher. 1952 Nobel Peace Prize, 1875-1965)
E. L. Doctorow quotes (American Author and Editor, b.1931)
Terry Pratchett quotes (English Writer, b.1948)
Lewis Carroll quotes (English Logician, Mathematician, Photographer and Novelist, especially remembered for Alice's Adventures in Wonderland. 1832-1898)
François de la Rochefoucauld quotes (French classical author, leading exponent of the Maxime, 1613-1680)