The article presents the activities of a preacher and teacher Szymon Dankowicz (1834-1910). In the 1860s Dankowicz was active in progressive circles in Warsaw. He had bonds with several institutions such as the Warsaw Rabbinic Seminary, the Lomdei Torah association, and the salon of the young Jewish intelligentsia; he also published in two Polish-Jewish periodicals Jutrzenka and Izraelita. In 1865 he unsuccessfully applied for the preacher position in the Daniłowiczowska Street synagogue. After 1868 he served as a preacher in the Kraków progressive synagogue. There he delivered sermons in the Polish language and manifested his pro-Polish attitude. In this city he also developed extensive pedagogical and charitable work. In later years Dankowicz applied for a preacher position at the Tempel in Lviv (1890) and served for several years in the Tarnopol Tempel (1895-1898). His biography, especially when compared to the biographies of other preachers, is an important example of the activities of a progressive preacher in partitioned Polish lands.