German mathematician.
Born April 17th, 1853 in Gorzów Wielkopolski.
Died May 27th, 1928 at 75 years old in Frankfurt am Main.
Those men who, in war, seek to preserve their lives at any rate commonly die with shame and ignominy, while those who look upon death as common to all, and unavoidable, and are only solicitous to die with honour, oftener arrive at old age and, while they live, live happier. Xenophon