EINSTEIN ALBERT: (1879-1955) German-born Theoretical Physicist, Nobel Prize winner for Physics, 1921.

A.L.S., Albert, one page, 4to, n.p., n.d. (c.1930), to his first wife Mileva, in German. Einstein states that he is very much looking forward to seeing his younger son, Eduard ('Tetel') and will ensure that he will have a quiet and agreeable time, and has been informed by Professor Maier that Tetel will take a second class night train, 'I bow to high science and think it will do no harm', further observing that 'the lives of ordinary people with prescribed activities and daily routines are better for their nerves than the lives of the rich lazy classes' and also commenting on the debilitating nervous effect of indolence. Einstein continues in a somewhat bitter manner on the prospect of his son Hans Albert and daughter-in-law Frieda having a child, remarking 'I am sorry to hear that those in Dortmund are to have a child. This destiny must run its course, as tragic as it is'. In a postscript Einstein adds that a graphologist has been able to detect from Mileva's handwriting that she suffered from back pain, declaring 'Quite a feat!'. A few very small, minor tears to the edges of the folds, not affecting the text or signature, otherwise VGMileva Maric (1875-1948) Serbian Physicist, the first wife of Albert Einstein from 1903-19. The couple had two sons, Hans Albert (1904-1973) Swiss-American Engineer & Educator and Eduard (1910-1965) who was diagnosed with schizophrenia at the age of 20 and was committed to asylums for long periods of his life. Both sons are referred to in the present letter.In 1927 Hans Albert married Frieda Krecht ('those in Dortmund') and Albert Einstein disapproved of his daughter-in-law, much in the same way as his parents had of Mileva. Convinced of bad heredity in Frieda and equally bad genes in Hans Albert, inherited from Mileva's side, Albert Einstein prophesied disaster, as hinted at in the present letter, if the couple were to have children. Their first son, Bernhard, was born in 1930 and the couple had three other children, two of whom died at very early ages.Einstein developed the general theory of relativity, one of the two pillars of modern physics, and is best known in popular culture for his formula E=mc2, the world's most famous equation.