Zygmunt Bychowski (Fig. 1) was born in a traditional Jewish family on June 18, 1865 in the town Korzec located in Volyn—eastern Polish land (at present in Ukraine), which at that time was annexed by the Russian Empire [1, 2]. In accordance with the will of his father Samuel, who was a Talmudist, young Zygmunt initially received Jewish religious education in orthodox schools in Korzec and Warsaw [3]. However, at the age of 17 he started to learn (against the wishes of his family) at the secular school in Warsaw [4]. After he passed the secondary-school-leaving exam, Zygmunt Bychowski went to Vienna and began to study natural sciences and philosophy. But soon he came back to Warsaw and started to study medicine at Warsaw University [2, 3].