crazy suddenly made much more sense". Regarding the philosophy of Ludwig Wittgenstein, Heisenberg disliked Tractatus Logico-Philosophicus but he liked "very much the later ideas of Wittgenstein and his philosophy about language." Heisenberg, a devout Christian, wrote: "We can console ourselves that the good Lord God would know the position of the [subatomic] particles, thus He would let the causality principle continue to have validity", in his last letter to Albert Einstein. Einstein continued to maintain that quantum physics must be incomplete because it implies that the universe is indeterminate at a fundamental level. In lectures given in the 1950s and later published as Physics and Philosophy, Heisenberg contended that scientific advances were leading to cultural conflicts. He stated that modern physics is "part of a general historical process that tends toward a unification and a widening of our present world". When Heisenberg accepted the in 1974, he gave a speech, which he later published under the title Scientific and Religious Truth. He mused: Autobiography and death Heisenberg's son, Martin Heisenberg, became a neurobiologist at the University of Würzburg, while his son Jochen Heisenberg became a physics professor at the University of New Hampshire. In his late sixties, Heisenberg penned his autobiography for the mass market. In 1969 the book was published in Germany, in early 1971 it was published in English and in the years thereafter in a string of other languages. Heisenberg had initiated the project in 1966, when his public lectures increasingly turned to the subjects of philosophy and religion. Heisenberg had sent the manuscript for a textbook on the unified field theory to the Hirzel Verlag and John Wiley & Sons for publication. This manuscript, he wrote to one of his publishers, was the preparatory work for his autobiography. He structured his autobiography in themes, covering: 1) The goal of exact science, 2) The problematic of language in atomic physics, 3) Abstraction in mathematics and science, 4) The divisibility of matter or Kant's antinomy, 5) The basic symmetry and its substantiation, and 6) Science and religion. Heisenberg wrote his memoirs as a chain of conversations, covering the course of his life. The book became a popular success, but was regarded as troublesome by historians of science. In the preface Heisenberg wrote that he had abridged historical events, to make them more concise. At the time of publication it was reviewed by Paul Forman in the journal Science