Leon Chwistek

Polish painter, philosopher and logician (*1884 – †1944).

Born January 13th, 1884 in Kraków. [ref]

Died August 20th, 1944 at 60 years old in Barvikha.

Occupations
aesthetician, art theorist, literary critic, mathematician, painter, philosopher, university teacher
Wikipedia

No one is actually dead until the ripples they cause in the world die away. Terry Pratchett