Will Rogers, Bryan B. Sterling, Frances N. Sterling (1993). “Will Rogers' World: America's Foremost Political Humorist Comments on the Twenties and Thirties--and Eighties and Nineties”, p.150, Rowman & Littlefield
1961 Preface to Franz Fanon Les Damne s de la terre (The Wretched of the Earth,1967, translated by Constance Farrington). Tsitsi Dangarembga uses this sentence to supply both epigraph and title of her1988 novel Nervous Conditions.