To avert such a disaster, the Judeo - Christian
heritage must be allowed to shed its outworn forms, and by
finding that mode of
expression most proper to the context of the new world, demonstrate to men that it possesses the same creative vitality that it has manifested in earlier periods.
In his later years, he developed a greater awareness of his Jewish
heritage, which
found expression in his works, with reference to the Holocaust and influences from Jewish writers such as Kafka and Walter Benjamin, and he came to consider himself to be a «wandering Jew».