 In 1942 Weil agreed to leave France in part so her parents would be in a safe place (they would not leave without her, she knew), but principally because she thought she might be more useful for France’s war effort if she were in another country. Thus she went to New York via Morocco. In New York, as in Marseilles, she filled notebook after notebook with philosophical, theological, and mathematical considerations. New York, however, felt removed from the sufferings of her native France; the Free French movement in London felt one step closer to returning to France. In 1943 Weil was given a small office at 19 Hill Street in London. From this room she would write day and night for the next four months, sleeping around three hours each night. Her output in this period totaled around 800 printed pages, but she resigned from the Free French movement in late July (Pétrement 1973 [1976: xx]).