Einstein's second wife Elsa was his cousin's cousin, their mother was a sister and their great-grandfather was Rupert Einstein. This marriage lasted from 19 19 to 1936 when Elsa died. Einstein's second son, Edward, was influenced by mileva's family inheritance and suffered from schizophrenia. He never married.
Einstein had three children, the eldest son bernhard Caesar Einstein was a physicist, the second son Klaus Martin (1932- 1938) and an adopted daughter. Bernhard Caesar Einstein had five children. The youngest child, Thomas Einstein, became a doctor and Paul Einstein was a violinist.
1 Later Einstein accepted the invitation of the German scientific community and moved to Berlin. In August, World War I broke out. Although he is in the birthplace of war. Living in the encirclement of war advocates, he firmly showed his anti-war attitude.
. On June+10, 5438, under the manipulation and instigation of militarists, the German scientific and cultural circles published the Declaration of Civilized World, defending the war of aggression launched by Germany, arguing that Germany is above all else and the whole world should accept the "true German spirit".
Ninety-three people signed the declaration, all of whom were prestigious scientists, artists and priests in Germany at that time. When asked for Einstein's autograph, he flatly refused, but at the same time resolutely signed his name on the anti-war letter to Europeans.
Einstein is often called a lonely man. The field of mathematical imagination helps to liberate the spirit from complex ordinary things. I think he is really a lonely man.