After Poland's liberation from German occupation, he emigrated to the United States and wrote his autobiography, Five Years in the Warsaw Ghetto (Yiddish: פֿינף יאָר אין וואַרשעווע געטאָ) (originally titled The Stars Bear Witness).
In the late years of Imperial Russia, Goldstein's political activities landed him in Siberian exile and Russian prisons.
Over a year after the German Army had reduced the Warsaw Ghetto to rubble in liquidating its remaining Jewish occupants, Socialist resister survivors were rounded up by the Soviets and either imprisoned or executed.
Via underground publications, Goldstein urged the Ghetto population to resist the German Army at all costs and not to cooperate with the Jewish collaborators whom the Gestapo controlled.
Escaping the Ghetto, Goldstein joined the Polish resistance and helped stage the following year's citywide 1944 Warsaw Uprising.