Born on 26 February 1884 in Bialystok, Poland. Father -- a middleman merchant(?), who had him educated in a private school, and also was left to learn at home. Later S. served in various towns was also a worker in a tile factory.

His literary activity began in 1903 in Russian in the Bialystok newspaper "Zapadnaya Ukraina" in July 1904, where he debuted with a song in Yiddish in "Der fraynd". At each time he tsugeshtanen to the "Bund". For months long he sat in prisons, and after Bialystok's pogrom, together with his parents, he went over to Lodz, where he began to often publish songs in the Yiddish periodic press. His first volume of songs "Shtile troymen" was published in 1909. Later he also began to write stories and sine the war became in Poland one of the popular Yiddish writers. In the publishing house "Bzhoza" (Warsaw), there was published to this day S.'s eighteen volumes.

Under the pseudonym "Aleksander Yavits", S. published from time to time articles about Yiddish theatre.

In 1915 he published in the "Yidishe velt" (Vilna, III), (due to military censure in a shorter form) his dramatic poem "Di vant" which in 1918 was published in full text in Moscow, and in 1920 in the publishing house A. Gitlin (Warsaw, 32 pp, 16°), and on 14 April 1921 it was read (in tails) by the members of the "Vilna Troupe" in Warsaw and later was performed by various "amateur"