Max Born (11 December 1882 – 5 January 1970) was a German-British physicist and mathematician who was instrumental in the development of quantum mechanics. He also made contributions to solid-state physics and optics and supervised the work of a number of notable physicists in the 1920s and 30s. Born won the 1954 Nobel Prize in Physics (shared with Walther Bothe).
1.) Nancy Thorndike Greenspan (2005). The End of the Certain World: The Life and Science of Max Born : the Nobel Physicist who Ignited the Quantum Revolution. Basic Books. pp. 58–62. ISBN 9780738206936. "Max later traced his reluctance to his father, who had taught him not to believe in a God who punished, rewarded, or performed miracles. Like his father, he based his morality on his "own conscience and on an understanding of human life within a framework of natural law." ...Born, in fact, was no longer Jewish. His mother-in-law had worn him down. In March 1914, after a few religion lessons in Berlin, he was baptized a Lutheran by the pastor who had married him to Hedi. As he later explained, "there were...forces pulling in the opposite direction [to my own feelings]. The strongest of these was the necessity of defending my position again and again, and the feeling of futility produced by these discussions [with Hedi and her mother]. In the end I made up my mind that a rational being as I wished to be, ought to regard religious professions and churches as a matter of no importance.... It has not changed me, yet I never regretted it. I did not want to live in a Jewish world, and one cannot live in a Christian world as an outsider. However, I made up my mind never to conceal my Jewish origin.""