Xxth century mathematician.
Born May 22nd, 1893 in Warsaw.
Died November 3rd, 1980 at 87 years old in Wrocław.
Let children walk with Nature, let them see the beautiful blendings and communions of death and life, their joyous inseparable unity, as taught in woods and meadows, plains and mountains and streams of our blessed star, and they will learn that death is stingless indeed, and as beautiful as life. John Muir