HANNAH ARENDT: FOR LOVE OF THE WORLD by Elisabeth Young-Bruehl Yale University; 563 pages; $25
Philosophy is concerned with two matters: soluble questions that are trivial, and crucial questions that are insoluble. Hannah Arendt always knew the difference; her critics sometimes did. In the disparity lay the tragedies and consolations of a career still sparking debate 19 years after the appearance of her most controversial book.
Rarely has a character been formed so early. In her vast, indulgent biography, Elisabeth Young-Bruehl records a note made by Frau Arendt in 1908, when Hannah was less...