STEFAN RUDYANSKI (April 28, 1887-June 1941)
He was born in Brisk (Brest), the son of Gedalye Rubinrot. He was raised in Warsaw in an assimilated environment. He studied philosophy and psychology in Leipzig and received his doctoral degree from Cracow University. In his youth he joined the Labor Zionists, around 1917-1918 switched to the leftist Polish Socialist Party, and later joined the Communists and formally broke his ties to Judaism. He was drawn to Yiddish literature by A. Litvin and began writing for Leben un visenshaft (Life and literature), in which he published: “Borekh shpinoza, zayn leben un virken: (Baruch Spinoza, his life and impact) (1911); and “Di filozofye fun di yudishe shprikhverter” (The philosophy of Jewish sayings) (1912). In the journal Di yudishe velt (The Jewish world): “Di eksperimentale psikhologye un dos praktishe leben” (Experimental psychology and practical life) and “Anri bergson vegn estetik” (Henri Bergson on aesthetics). He died in Lemberg.
Sources: Zalmen Reyzen, Lkesikon, vol. 4; Ber Borokhov, Shprakh-forshung un literatur-geshikhte (Language research and literary history) (Tel Aviv: Perets Publ., 1966), p. 164; Wielka encyklopedia powszechna PWN (Warsaw, 1946), vol. 10.