No, Niels Bohr did not reject quantum mechanics in his later life or take the "Lord into his heart" as a savior. This claim seems to stem from a misinterpretation or distortion of Bohr's personal beliefs.
Niels Bohr was one of the founding fathers of quantum mechanics and made significant contributions to its development. He played a pivotal role in formulating the Copenhagen interpretation, which is one of the fundamental frameworks for understanding quantum mechanics.
Bohr's religious and philosophical views were complex and nuanced. While he acknowledged the limitations of scientific knowledge and the existence of philosophical questions beyond the scope of science, he did not reject quantum mechanics or turn to religious salvation.
Bohr maintained a strong commitment to the principles and framework of quantum mechanics throughout his life. His later work focused on the application of quantum principles to various fields, including nuclear physics and the understanding of complex systems.
It is essential to approach the discussion of scientific figures' personal beliefs with caution and rely on accurate and well-documented sources. In the case of Niels Bohr, there is no credible evidence to support the claim that he rejected quantum mechanics or embraced religious salvation in his later life.