Hannah Arendt began her scholarly career with an exploration of Saint Augustine's concept of caritas, or neighborly love, written under the direction of Karl Jaspers and the influence of Martin Heidegger. After her German academic life came to a halt in 1933, Arendt carried her dissertation into exile in France, and years later took the same battered and stained copy to New York. During the late 1950s and early 1960s, as she was completing...